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{{short description|none}}
{{Use dmy dates|date=October 2014}}
{{Infobox flag
| Name = National Flag of the People's Republic of Bangladesh
| Image = File:Flag of Bangladesh.svg
| Nickname = "The Red–Green"
| Morenicks =
| Use = 111000
| Symbol = {{FIAV|111000}} {{FIAV|normal}} {{FIAV|Mirror}} {{FIAV|Vertical unknown}}
| Proportion = 3:5
| Adoption = {{Start date and age|1972|01|17|df=y}}
| Design = A green field defaced by a red disc slightly off centre to hoist (left as depicted).
| Designer = [[Quamrul Hassan]]
| Image2 = Civil Ensign of Bangladesh.svg
| Imagetext2 = Civil ensign of [[Bangladesh]]
| Use2 = [[Civil ensign]]
| Symbol2 = {{FIAV|000100}} {{FIAV|normal}} {{FIAV|Mirror}}
| Design2 = A [[Red Ensign]] with the national flag of [[Bangladesh]] in the canton.
| Image4 = Naval Ensign of Bangladesh.svg
| Imagetext4 = Naval ensign of [[Bangladesh]]
| Use4 = [[Naval ensign]]
| Symbol4 = {{FIAV|000001}}{{FIAV|normal}}{{FIAV|Mirror}}
| Design4 = A [[White Ensign]] with the national flag of [[Bangladesh]] in the canton.
| Use5 = [[Air force ensign]]
| Symbol5 = {{FIAV|normal}}
| Image5 = Air Force Ensign of Bangladesh.svg
| Proportion5 = 1:2
| Design5 = A field of air force blue with the national flag of [[Bangladesh]] in the canton and the [[Bangladesh Air Force]] roundel in the middle of the fly.
}}
The [[national flag]] of [[Bangladesh]], nicknamed the '''''Lal–Sobuj''''',{{efn|{{langx|bn|লাল–সবুজ|Lal–Sôbuj}}, {{IPA|bn|ˈlalˌʃobudʒ|pron}}; {{lit|the Red–Green}}}} was adopted officially on 17 January 1972. It consists of a red circle on top of a dark green field. The red circle is offset slightly toward the hoist so that it appears centred when the flag is flying. The [[civil ensign]] and [[naval ensign]] place it in the [[Flag terminology|canton]] of a red or white field, respectively.

The flag is based on a similar flag used during the [[Bangladesh Liberation War]] of 1971, which had a yellow map of the country inside the red disc. In 1972, this map was removed from the flag. One reason given was the difficulty for rendering the map correctly on both sides of the flag.<ref name="fotw" />

While there are numerous interpretations, the most widely accepted interpretation says that the green of the flag symbolises the lush [[Geography of Bangladesh|landscape of Bangladesh]], and the red circle, reminiscent of the rising sun, represents the sacrifice made by the people during the [[Bangladesh Liberation war|Liberation War of 1971]].<ref>{{Cite news|url=https://www.dhakatribune.com/magazine/arts-and-letters/46644/shib-narayan-das-the-flag-redesign-was|title=Shib Narayan Das: The flag redesign was pre-planned|last=Kabir|first=Punny|date=2013-12-12|location=Dhaka|language=en|work=[[Dhaka Tribune]]|access-date=2024-07-27}}</ref>

==Origin==
[[File:Flag of Bangladesh (1971).svg|thumb|Flag of Bangladesh used during the Liberation War]]
[[File:Bangabandhu Waiving Flag on 23 March 1971 at Dhanmondi 32.jpg|thumb|Official hoisting of the flag by [[Sheikh Mujibur Rahman]] at his residence in 32 Dhanmondi on 23 March 1971]]
[[File:Shangrami Chetona - DU - Ashfaq.jpg|thumb|right|[[Dhaka University]] campus, where a flag representing Bangladesh for the first time was raised on 2 March 1971]]

The first version of the flag was designed and made by a group of student leaders and activists from the [[Swadheen Bangla Nucleus]] on 6 June 1970. The work took place in room 108 of Iqbal Hall (now Sergeant [[Zahurul Haq]] Hall) at [[Dhaka University]]. The students involved in the design included [[Kazi Aref Ahmed]], [[ASM Abdur Rab]], [[Shajahan Siraj]], [[Monirul Islam (artist)|Manirul Islam]] (Marshal Moni), Swapan Kumar Choudhury, [[Serajul Alam Khan]], Quamrul Alam Khan Khasru, [[Hasanul Haq Inu]], and Yousuf Salahuddin Ahmed.<ref>{{Cite web |date=2021-03-29 |title=OP-ED: Fifty years of the Bangladeshi flag |url=https://www.dhakatribune.com/opinion/op-ed/242468/op-ed-fifty-years-of-the-bangladeshi-flag |access-date=2026-02-04 |website=Dhaka Tribune |language=en}}</ref> The flag was crafted from cloth donated by Bazlur Rahman Lasker, the owner of Apollo Tailors, [[Dhaka New Market]].<ref>{{cite news|url=http://www.prothom-alo.com/pachmisheli/article/98845/|script-title=bn:আমাদের জাতীয় পতাকা|work=[[Prothom Alo]]|language=bn|access-date=12 December 2017|archive-date=12 December 2017|archive-url=https://web.archive.org/web/20171212193717/http://www.prothom-alo.com/pachmisheli/article/98845/}}</ref>

A map of [[East Pakistan]] (now Bangladesh) was first traced on a tracing paper from an atlas by Hasanul Haq Inu, Yousuf Salahuddin Ahmed and Enamul Haq, at Enamul's room (312) in Quaid-I Azam Hall (now Titumir Hall), EPUET (now [[Bangladesh University of Engineering and Technology|BUET]]).<ref>{{cite AV media|url=https://www.youtube.com/watch?v=DqVjD44C9MU|archive-url=https://web.archive.org/web/20200811190355/https://www.youtube.com/watch?v=DqVjD44C9MU|archive-date=11 August 2020|url-status=bot: unknown|title=History of Bangladeshi Flag Part 1|last=Mohammad Momen|date=15 December 2014|access-date=12 December 2017|publisher=Faizul Momen|via=[[YouTube]]}}</ref><ref>{{cite AV media|url=https://www.youtube.com/watch?v=FFFFA8obveo|archive-url=https://web.archive.org/web/20160307080318/https://www.youtube.com/watch?v=FFFFA8obveo|archive-date=7 March 2016|url-status=bot: unknown|title=History of Bangladeshi Flag Part 2|last=Mohammad Momen|date=15 December 2014|access-date=12 December 2017|publisher=Faizul Momen|via=[[YouTube]]}}</ref> Later, the map was painted in the red circle by [[Shib Narayan Das]].<ref>'আমাদের জাতীয় পতাকার ইতিহাস',
আমাদের সময়, ডিসেম্বর ৩, ২০০৯</ref> On 2 March 1971, this initial version of the flag was hoisted in Bangladesh for the first time at Dhaka University, by student leader [[A. S. M. Abdur Rab]], the then Vice President of [[Dhaka University Central Students' Union]] (DUCSU).<ref>Glassie, Henry and Mahmud, Feroz. 2008. Living Traditions. Cultural Survey of Bangladesh Series-II. Asiatic Society of Bangladesh. Dhaka. p. 580</ref> The flag was conceived so as to exclude the [[star and crescent]] considered as symbols of [[West Pakistan]] (now [[Pakistan]]).

Another source states the first flag hoisted at Dhaka University on 2 March 1971 was stitched by Mini Quadir on 1 March 1971 upon requests from her cousin Monirul Haque, the president of Dhaka metropolitan [[Awami League]]. Using materials bought from Dhaka [[Port of Dhaka|Sadarghat]]. On the next day upon another request by Monirul Haque a white cutout of the East Pakistan map was stitched onto the flag and later coloured golden using afsaan ([[Mehndi|mehendi]]) upon reconsideration. The flag was hoisted at Dhaka University.<ref>{{Cite web |interviewer-last=Dina|interviewer-first=Sayala Roksana |last=Quadir|first=Mini |date=26 Mar 2008 |title='The colour of the flag will be green, with a red circle' |url=https://bdnews24.com/bangladesh/the-colour-of-the-flag-will-be-green-with-a-red-circle |archive-url=https://web.archive.org/web/20250513092425/https://bdnews24.com/bangladesh/the-colour-of-the-flag-will-be-green-with-a-red-circle |archive-date=May 13, 2025 |access-date=2025-05-13 |website='The colour of the flag will be green, with a red circle' |language=en}}</ref><ref>{{Cite book |last=Imam |first=Jahanara |title=একাত্তরের দিনগুলি |date=February 1986 |publisher=Shandhani Prakashani and Charulipi Prakashani |isbn=9844800005 |location=Bangladesh |trans-title=The Days of '71 |oclc=417202076}}</ref>

On 23 March 1971, Sheikh Mujibur Rahman officially hoisted the flag for the first time at [[Bangabandhu Memorial Museum|his house]] in 32 [[Dhanmondi Thana|Dhanmondi]]. According to his pre-announced instructions, a general holiday is observed across the country on this day.<ref>{{cite news |last=Haque |first=Sazidul |date=23 March 2021 |script-title=bn:২৩ মার্চ ১৯৭১: 'পাকিস্তান দিবস' মুছে গেল প্রতিরোধের পতাকায় |trans-title=23 March 1971: 'Pakistan Day' erased from resistance flag |language=bn |url=https://bangla.bdnews24.com/bangladesh/march1971/article1871285.bdnews |access-date=25 September 2022 |work=[[Bdnews24.com]] |archive-date=24 March 2021 |archive-url=https://web.archive.org/web/20210324083833/https://bangla.bdnews24.com/bangladesh/march1971/article1871285.bdnews |url-status=live}}</ref>

In April 1971, the flag was hoisted for the first time in foreign mission, when Deputy High Commissioner Hosen Ali along with other officials declared their alliance with the newly formed Mujibnagar Government.<ref>{{Cite news |title=Role of MOFA in Liberation War |website=Ministry of Foreign Affairs |url=https://mofa.gov.bd/site/page/3164add5-f0b4-432e-99e3-342057675660 |url-status=live |archive-url=https://web.archive.org/web/20250217151843/https://mofa.gov.bd/site/page/3164add5-f0b4-432e-99e3-342057675660 |archive-date=2025-02-17}}</ref>
[[File:First flag of Bangladesh to hoited on foreign soil.jpg|thumb|right|First flag to be hoisted on Kolkata Mission of Bangladesh]]

On 25 July 1971, [[Zakaria Pintoo]], captain of the [[Shadhin Bangla Football Team]] became the first person to hoist the Bangladesh flag on foreign soil, before a match in [[Nadia district]] of the Indian state of [[West Bengal]].<ref>{{Cite news |title=I am luckier than Pele: Zakaria Pintoo |url=https://www.newagebd.net/article/133717/i-am-luckier-than-pele-zakaria-pintoo |url-status=live |archive-url=https://web.archive.org/web/20220218173354/https://www.newagebd.net/article/133717/i-am-luckier-than-pele-zakaria-pintoo |archive-date=18 February 2022 |access-date=7 May 2023 |work=[[New Age (Bangladesh)]]}}</ref>

On 13 January 1972, the flag was modified. The map from the centre was removed, and the red disk moved towards the hoist so as to be visually centred when the flag is in flight on a mast.{{Citation needed|date=December 2024}}

==Symbolism==
[[File:National Flag of Bangladesh in South Korea.jpg|thumb|Flag of Bangladesh waving in the air]]
According to ''[[CIA World Factbook]]''<ref name="fotw">[https://www.fotw.info/flags/bd.html Flag of Bangladesh] {{webarchive|url=https://web.archive.org/web/20060523041531/https://www.fotw.info/FLagS/bd.html |date=23 May 2006 }}, [[Flags of the World (website)|Flags of the World]].</ref><ref name="lonelyplanet">"Lonely Planet: Bangladesh", 4th Edition, Lonely Planet Publications, (December 2000), {{ISBN|0-86442-667-4}}.</ref> and official descriptions, the green used in the flag represents the lushness of the green landscape of the country<ref name=CIAfactbook-1>{{cite web|title=Flag description|url=https://www.cia.gov/library/publications/the-world-factbook/fields/2081.html|work=The world fact book|publisher=CIA USA|access-date=3 May 2013|archive-url=https://web.archive.org/web/20170701210145/https://www.cia.gov/library/publications/the-world-factbook/fields/2081.html|archive-date=1 July 2017|df=dmy-all}}</ref><ref name=":0">{{Cite encyclopedia|url=http://www.britannica.com/topic/flag-of-Bangladesh|title=flag of Bangladesh|encyclopedia=Encyclopædia Britannica|access-date=5 March 2016|archive-date=10 November 2017|archive-url=https://web.archive.org/web/20171110173734/https://www.britannica.com/topic/flag-of-Bangladesh|url-status=live}}</ref> and the red disk of the flag represents the blood the [[Bengalis]] shed during the Bangladesh Liberation War and the blood of those who died for the [[independence of Bangladesh]].<ref name=":0" /> An alternative description says that the green background represents the youth power and progress, while the red disk represents the revolution and renaissance. The circularity of the red design indicates the [[sunrise|rising sun]], similar to the [[Japanese flag]].

==Design==
{{multiple image
|header=Construction guide
|direction=vertical
|total_width=250
|image1=Bangladesh National Flag construct.svg
|image2=Flag of Bangladesh (construction sheet).svg
}}
According to Bangladeshi government specifications,<ref name="flagrule">{{Cite web |date=July 2005 |title=People’s Republic of Bangladesh flag rules, 1972 |url=http://lib.pmo.gov.bd/legalms/pdf/national-flag-rules.pdf#page=2 |url-status=dead |archive-url=https://web.archive.org/web/20180619074851/http://lib.pmo.gov.bd/legalms/pdf/national-flag-rules.pdf#page=2 |archive-date=June 19, 2018 |website=Prime Minister's Office, Government of the People's Republic of Bangladesh}}</ref> following is the specification of the national flag:
*The flag will be in [[Spring_green#Bottle_green|bottle green]] and rectangular in size in the proportion of length to width of 10:6, with a red circle in near middle.
*The red circle will have a radius of one-fifth of the length of the flag. Its centre will be placed on the intersecting point of the perpendicular drawn from the nine-twentieth part of the length of the flag, and the horizontal line drawn through the middle of its width.
*The green base of the flag will be of [[Procion]] Brilliant Green H-2RS 50 parts per 1000. The red circular part will be of Procion Brilliant Orange H-2RS 60 parts per 1000.
*Depending on the size of the building the flag sizes will be {{convert|10|x|6|ft|abbr=on}}; {{convert|5|x|3|ft|abbr=on}}; {{convert|2+1/2|x|1+1/2|ft|mm|abbr=on}}. The size of the flag for cars is {{convert|12+1/2|x|7+1/2|in|abbr=on}}, and the size of the table flag for bilateral conferences is {{convert|10|x|6|in|abbr=on}}.

{| class="wikitable" style="text-align:center;"
|+ Colour Reference
|-
! [[Colour model]]
! style="background-color:#006747; color:#FFFFFF;"|Green
! style="background-color:#DA291C; color:#FFFFFF;"|Red
|-
|[[Procion]] (official specification)<ref name="flagrule"/>
|[[Brilliant green (dye)|Brilliant Green]] H-2RS 50 parts per 1000
|Brilliant Orange H-2RS 60 parts per 1000
|-
| [[Pantone]]<ref>{{cite book|title=Flags and anthems manual London 2012: SPP final version / London Organising Committee of the Olympic Games and Paralympic Games|date=2012|publisher=LOCOG. London|page=17|url=https://library.olympic.org/Default/doc/SYRACUSE/34593/flags-and-anthems-manual-london-2012-spp-final-version-london-organising-committee-of-the-olympic-ga?_lg=en-GB|access-date=20 October 2017|archive-date=28 September 2017|archive-url=https://web.archive.org/web/20170928193252/https://library.olympic.org/Default/doc/SYRACUSE/34593/flags-and-anthems-manual-london-2012-spp-final-version-london-organising-committee-of-the-olympic-ga?_lg=en-GB|url-status=live}}</ref>
| 342 C
| 485 C
|-
|[[RGB]] {{ref|alpha|a}}
| 0,103,71
| 218,41,28
|-
| [[CMYK]] {{ref|beta|b}}
| 100-0-31-60
| 0-81-87-15
|-
|[[Hexadecimal|Hex]] {{ref|beta|b}}
| #006747
| #DA291C
|}
:{{note|alpha|a}} Converted from Pantone color model per {{url|connect.pantone.com}}
:{{note|beta|b}} Converted from RGB based on ''Inkscape'' colours value.

== Protocol ==
{{Multiple image
| direction = horizontal
| image1 = Ceremonial parade flag of Bangladesh.svg
| image2 = Ceremonial Flag of Bangladesh.svg
| footer = Flag used in [[military parades]] ({{FIAV|Equal}}), with the [[Ayah|Quranic verse]] inscribed: "Verily, [[God in Islam|Allah]] is capable of all things" ({{cite quran|35|1|style=nosup|expand=yes}})
}}
[[File:Colour guards Contingent of Bangladesh Military Academy.jpg|thumb|Colour guards contingent of [[Bangladesh Military Academy]] waving the ceremonial flag of Bangladesh.]]
The national flag of Bangladesh is flown on all working days on important government buildings and offices, e.g., the president house, legislative assembly buildings, etc. All ministries and the secretariat buildings of Bangladesh, offices of the high court, courts of district and session judges, offices of the commissioners of divisions, deputy commissioner/collectors, chairman, upazila parishad, central and district jails, police stations, primary, secondary and higher secondary level educational institutions and other buildings notified by the government from time to time. Ministers of state and persons accorded the status of a minister of state, deputy ministers and persons accorded the status of a deputy minister while on tour outside the capital within the country or abroad are entitled to fly the flag on their motor vehicles and vessels.<ref name="flagrule"/>

===Official residences===
The following persons must fly the flag on their official residence:<ref name="flagrule"/>
* The [[President of Bangladesh]]
* The [[Prime Minister of Bangladesh]]
* The [[Speaker of the Jatiya Sangsad]]
* The [[Deputy Speaker of the Jatiya Sangsad]]
* The [[Chief Whip of Bangladesh]]
* The [[Chief Justice of Bangladesh]]
* All [[Cabinet of Bangladesh|Cabinet Ministers]]
* All Ministers of State
* The [[Leader of the Opposition in Jatiya Sangsad]]
* Heads of Bangladeshi Diplomatic or Consular Missions in foreign countries
* Chairmen of [[Chittagong hill tracts]] (district offices of [[Rangamati]], [[Khagrachari]] and [[Bandarban]])

===Motor vehicles and vessels===
The following persons are entitled to fly the flag on their motor vehicles and vessels:<ref name="flagrule"/>
* The [[President of Bangladesh]]
* The [[Prime Minister of Bangladesh]]
* The [[Speaker of the Jatiya Sangsad]]
* The [[Deputy Speaker of the Jatiya Sangsad]]
* The [[Chief Whip of Bangladesh]]
* The [[Chief Justice of Bangladesh]]
* All [[Cabinet of Bangladesh|Cabinet Ministers]]
* All Ministers of State
* The [[Leader of the Opposition in Jatiya Sangsad]]
* Heads of Bangladeshi Diplomatic or Consular Missions in foreign countries

=== Display ===
The national flag of Bangladesh is flown on public and private buildings throughout Bangladesh and the office premises of [[Bangladeshi diplomatic missions]] and consular posts on the following days and occasions:<ref name="flagrule"/>
* [[Independence Day (Bangladesh)|Independence Day]] on 26 March.
* [[Victory Day (Bangladesh)|Victory Day]] on 16 December.
* Any other day notified by the Government of Bangladesh.

=== Half-mast ===
The national flag of Bangladesh is flown at half-mast on the [[Language Movement Day|National Martyrs Day]] on 21 February, and all other days notified by the Government of Bangladesh.<ref name="flagrule"/>

==World records==
*On 16 December 2013, the 42nd [[Victory Day (Bangladesh)|Victory Day of Bangladesh]], 27,117 people gathered at the National Parade Ground in Dhaka's [[Sher-e-Bangla Nagar]] and created a "human flag" which was recorded in ''[[Guinness World Records|Guinness Book of World Records]]'' as the world's largest human national flag.<ref>{{cite news|url=http://bdnews24.com/bangladesh/2014/01/04/bangladeshs-human-flag-in-guinness-world-records|title=Bangladesh's human flag in Guinness World records|work=Bdnews24.com|access-date=12 December 2017|archive-date=4 January 2014|archive-url=https://web.archive.org/web/20140104204514/http://bdnews24.com/bangladesh/2014/01/04/bangladeshs-human-flag-in-guinness-world-records|url-status=live}}</ref><ref>{{cite news |url=http://www.banglamail24.com/english/index.php?view=details&news_type_id=1&menu_id=3&news_id=13262 |title=Bangladesh makes biggest flag |work=Bangla Mail 24 |archive-url=https://web.archive.org/web/20131218021716/http://www.banglamail24.com/english/index.php?view=details&news_type_id=1&menu_id=3&news_id=13262 |archive-date=18 December 2013 |access-date=16 December 2013}}</ref><ref>{{cite news|url=https://bdnews24.com/bangladesh/2013/12/16/world-largest-human-flag|title=World's largest human flag!|date=16 December 2013|website=Bdnews24.com|access-date=26 November 2018|archive-date=27 November 2018|archive-url=https://web.archive.org/web/20181127110227/https://bdnews24.com/bangladesh/2013/12/16/world-largest-human-flag|url-status=live}}</ref> This feat was short, however, as India topped the record on 7 December 2014 with 43,830 people participating to achieve the new world record for largest human national flag.<ref>{{cite web|url=https://www.guinnessworldrecords.com/world-records/largest-human-national-flag|title=Largest Human National Flag|date=7 December 2014|website=guinnessworldrecords.com|access-date=10 February 2021|archive-date=11 February 2021|archive-url=https://web.archive.org/web/20210211054058/https://www.guinnessworldrecords.com/world-records/largest-human-national-flag|url-status=live}}</ref>
*In July 2021, Saimon Imran Hayder used 16,000 envelopes to create a 240m<sup>2</sup> Bangladesh flag at the [[InterContinental Dhaka]] which was also a Guinness World Record attempt.<ref>{{cite news|url=https://www.dhakatribune.com/bangladesh/2021/07/24/murad-guinness-world-record-of-national-flag-will-be-pride-for-nation|work=[[Dhaka Tribune]]|title=Murad: Guinness world record of national flag will be pride for nation|date=24 July 2021|author=BSS|access-date=26 July 2021|archive-date=26 July 2021|archive-url=https://web.archive.org/web/20210726151824/https://www.dhakatribune.com/bangladesh/2021/07/24/murad-guinness-world-record-of-national-flag-will-be-pride-for-nation|url-status=live}}</ref><ref>{{cite news|url=https://www.dhakatribune.com/feature/2021/07/24/a-guinness-world-record-attempt-largest-bangladesh-national-flag-made-of-handmade-envelopes|title=A Guinness World Record attempt: Largest Bangladesh national flag made of handmade envelopes|date=24 July 2021|work=[[Dhaka Tribune]]|access-date=26 July 2021|archive-date=26 July 2021|archive-url=https://web.archive.org/web/20210726151824/https://www.dhakatribune.com/feature/2021/07/24/a-guinness-world-record-attempt-largest-bangladesh-national-flag-made-of-handmade-envelopes|url-status=live}}</ref>
*In May 2024, in [[Memphis, Tennessee]], [[Ashik Chowdhury]] jumped from 41,795 feet with a flag of Bangladesh.<ref>{{Cite web |last=Anika |first=Ayman |date=2024-05-26 |title=Ashik Chowdhury's record skydive from 41,000 feet! |url=https://www.thedailystar.net/life-living/news/ashik-chowdhurys-record-skydive-41000-feet-3618751 |access-date=2024-11-01 |website=The Daily Star |language=en}}</ref><ref>{{Cite web |last=Mia |first=Sozib |date=2024-05-28 |title=Ashik jumps off plane with national flag |url=https://en.prothomalo.com/bangladesh/good-day-bangladesh/lqofhnkxdu |access-date=2024-11-01 |website=Prothomalo |language=en}}</ref><ref>{{Cite web |title=Ashik Chowdhury, a professional skydiver, posing with the Bangladesh flag |url=https://today.thefinancialexpress.com.bd/print/ashik-chowdhury-a-professional-skydiver-posing-with-the-bangladesh-flag-1716312950 |access-date=2024-11-01 |website=today.thefinancialexpress.com.bd}}</ref> He was awarded the "Greatest Distance Freefall with a Banner or Flag" record by Guinness World Records.<ref>{{Cite web |title=Greatest distance freefall with a banner/flag |url=https://www.guinnessworldrecords.com/world-records/762444-greatest-distance-freefall-with-a-banner-flag#:~:text=The%20greatest%20distance%20freefall%20with,Bangladesh%20flag%20during%20the%20skydive. |access-date=1 November 2024 |website=[[Guinness World Records Limited]]}}</ref>
*On 16 December 2025, the 54th Victory Day of Bangladesh, 54 paratroopers (signifying the 54th Victory Day), including Ashik Chowdhury, jumped from the attitude of {{approximately}} {{convert|12000|ft|m}} with Bangladeshi flags over the National Parade Ground in Sher-e-Bangla Nagar, Dhaka, which was recorded in ''Guinness Book of World Records'' as the world's largest flag-parachuting event.<ref>{{cite web|title=Bangladesh sets world record for parachuting with highest number of flags|url=https://en.bd-pratidin.com/national/2025/12/16/52878|website=[[Bangladesh Pratidin]]|date=16 December 2025}}</ref>

== Historical flags ==
=== Pre-colonial states ===
{| class="wikitable"
|-
! style="width:110px;"|Flag !! style="width:100px;"|Date !! style="width:250px;"|Use !! style="width:250px;"|Description
|-
| {{ListFlag|Sultan of Delhi Flag according to the Catalan Atlas (1375).png}} || 1206–1352 || Flag of the [[Delhi Sultanate]] according to the [[Catalan Atlas]] (1375)|| A dark grey flag with a black strip left of centre.
|-
| {{ListFlag|Alam of the Mughal Empire.svg|border=no}} || 1576–1717 || Flag of the [[Mughals]] ([[Bengal Subah]])|| [[Mughal Empire]] [[Flag of the Mughal Empire|Alam]] flag that was primarily [[moss green]].<ref>{{cite web |url=https://www.bl.uk/onlinegallery/onlineex/apac/addorimss/a/019addor0005475u00059vd0.html |title=A panorama in 12 folds showing the procession of the Emperor Bahadur Shah to celebrate the feast of the 'Id. f. 59v-D |website=British Library |access-date=12 November 2022 |archive-date=19 September 2022 |archive-url=https://web.archive.org/web/20220919070131/https://www.bl.uk/onlinegallery/onlineex/apac/addorimss/a/019addor0005475u00059vd0.html |url-status=live }}</ref>{{failed verification|date=November 2022}}
|-
| {{ListFlag|Bengal subah flag (Nautical).svg|border=no}} || 1717–1757 || Flag of the [[Bengal Subah|Bengal Nawab]]|| A white flag with three red barrels and a red sword.<ref>{{cite book|title=Vlaggen van alle Natien|year=1862|author=Steenbergen|url=https://assets.catawiki.nl/assets/2014/6/9/2/9/4/294f8ffa-efb9-11e3-99ec-ac83e78c4a8a.jpg|access-date=16 August 2021|archive-date=24 July 2021|archive-url=https://web.archive.org/web/20210724125732/https://assets.catawiki.nl/assets/2014/6/9/2/9/4/294f8ffa-efb9-11e3-99ec-ac83e78c4a8a.jpg|url-status=live}}</ref>
|}
===British India and independence===
{| class="wikitable"
|-
! style="width:110px;"|Flag !! style="width:100px;"|Date !! style="width:250px;"|Use !! style="width:250px;"|Description
|-
| {{ListFlag|Flag of the United Kingdom.svg}} || 1858–1947 || The official [[state flag]] of the [[British Empire]] for use in India || The [[Flag of the United Kingdom]].
|-
| {{ListFlag|Flag of the Governor-General of India (1885–1947).svg}} || 1885–1947 || Flag of the [[Viceroy of India]] || The [[Union Jack]] with the insignia of the [[Order of the Star of India]] beneath the [[Imperial Crown of India]].
|-
| {{ListFlag|British Raj Red Ensign.svg}} || 1880–1947 || [[Star of India (flag)|Flag of the British Raj]]: A civilian flag used to represent [[British Raj|British India]] internationally. || A [[Red Ensign]] with the Union Flag at the canton, and the [[Star of India (flag)|Star of India]] displayed in the fly.
|-
| {{ListFlag|Flag of British Bengal.svg}} || −1947 || Flag of the [[Bengal Presidency|Presidency of Fort William (Bengal Presidency, later Bengal Province)]] || A [[Blue Ensign]] with the Union Flag at the canton, and the Bengal Presidency Emblem displayed in the fly.
|-
| {{ListFlag|Flag of Pakistan.svg}} || 1947–1971 || Flag of [[Pakistan]] || Green flag with a white crescent and star on it, and a white strip to its left. See [[List of Pakistani flags]] for more.
|-
| {{ListFlag|Flag of the Mukti Bahini-DeFacto.svg}} || March – December 1971|| Flag of [[Mukti Bahini]] (Liberation Forces)|| A flag with a red background, a white disk and a hand holding a rifle- bayonet in the middle.
|-
| {{ListFlag|Flag of Bangladesh (1971).svg}} || 1971–1972 || Flag of [[Provisional Government of the People's Republic of Bangladesh]], used after independence too. In recent years often used during protests as a legacy symbol of the original vision of the country during the liberation war.|| A flag with a green background, a red disk and a yellow map of the country in the middle<ref name="fotw" />
|-
| {{ListFlag|Flag of Bangladesh (1971 reverse).svg}} || 1971–1972 || Reverse of flag of [[Provisional Government of the People's Republic of Bangladesh]], used after independence too. || A flag with a green background, a red disk and a yellow map of the country in the middle<ref name="fotw" />
|-
| {{ListFlag|Flag of Bangladesh.svg}} || 1972–present || National flag of Bangladesh || A red disc on top of a green field, offset slightly toward the hoist.<ref name="CIAfactbook-1" />
|}

==See also==
{{Portal|Bangladesh}}
* [[List of Bangladeshi flags]]
* [[National symbols of Bangladesh]]

;Similar flags by pattern
* [[Flag of Japan]]
* [[Flag of Palau]]

==Notes==
{{Notelist}}

==References==
{{Reflist}}

==External links==
{{Commons category|National flag of Bangladesh}}
* {{FOTW|id=bd|title=Bangladesh}}
* {{cite book |last=Farooq |first=AKM |year=2012 |chapter=National Flag |chapter-url=https://en.banglapedia.org/index.php?title=National_Flag |editor1-last=Islam |editor1-first=Sirajul |editor1-link=Sirajul Islam |editor2-last=Jamal |editor2-first=Ahmed A. |title=Banglapedia: National Encyclopedia of Bangladesh |edition=Second |publisher=[[Asiatic Society of Bangladesh]]}}
* [https://russelljohn.net/journal/2019/05/flags-of-bangladesh-japan-and-palau/ Similarities between flags of Bangladesh, Japan, and Palau]

{{Asia topic|Flag of|title=[[Flags of Asia]]}}
{{Symbols of Bangladesh}}
{{Bangladesh topics}}

{{DEFAULTSORT:Bangladesh}}
[[Category:Bicolor flags]]
[[Category:National symbols of Bangladesh|Flag]]
[[Category:Flags introduced in 1972|Bangladesh]]
[[Category:Flags of Bangladesh| ]]
[[Category:National flags|Bangladesh]]
[[Category:Flags with circles]]
[[Category:Flags displaying a sun]]
[[Category:Vertically symmetrical flags]]

Flag of Bangladesh - Revision history

Effossy at 08:56, 20 March 2026