A flag day is a flag-related holiday—either a day designated for flying a certain flag (such as a national flag), or a day set aside to celebrate a historical event such as a nation's adoption of its flag.
Flag days are usually codified in national statutes, however, in some countries a decree by the head of state can also order a flag day. The statute or decree may specify locations where flags are flown and how are they flown (for example, at full- or half-staff); alternatively, custom may prevail.
Specific flag days 
|Afghanistan||August 19||Independence day, 1919.|
|Albania||November 28||Independence day, 1912.|
|Argentina||June 20||Anniversary of the death of Manuel Belgrano, who created the current flag.|
|Aruba||March 18||Flag day. Adoption of the national flag on March 18, 1976.|
|Australia||September 3||Australian National Flag Day commemorates the first flying of the Australian National Flag in 1901.|
|Azerbaijan||November 9||State Flag Day, was officially established in 2009, for the commemoration of the adoption of the Flag of Azerbaijan on November 9, 1918.|
|Åland||Last Sunday of April||Commemorates adoption of the Åland flag|
|Bolivia||August 17||Flag Day in Bolivia. Commemorates of the creation of the first national flag.|
|Brazil||November 19||Flag Day in Brazil; adopted in 1889|
|National Flag of Canada Day commemorates adoption of the Canadian flag, Feb. 15, 1965.
Québec Flag Day (French: Jour du Drapeau) commemorates the first flying of the flag of Quebec, January 21, 1948.
|Declaration of Independence (1810) (Celebrated as National Day); Battle of Boyaca (1819)|
|Curaçao||June 2||Dia di Himno i Bandera ("Day of the National Anthem and Flag"). Adoption of the national flag on 2 June 1984.|
|Denmark||June 15||Anniversary of the Battle of Valdemar in 1219 in Lyndanisse, Estonia, where according to legend, the ("Dannebrog") fell from the sky. It is also the anniversary of the return of North Slesvig in 1920 to Denmark following the post-World War I plebiscite.|
|Ecuador||September 26||"Day of the National Flag" ("Dia de la Bandera Nacional"). Date when the tricolour was reinstated in 1860, two days|
|England||April 23||"St. George's Day". Date when the flag of St. George is flown to celebrate his slaying of a dragon.|
|Estonia||June 4||"Eesti lipu päev" (National Flag Day). Date when the Flag of Estonia was consecrated in 1884.|
|European Union||May 9||Europe Day commemorates the Schuman Declaration.|
|Finland||Midsummer's Day||"Suomen lipun päivä", "Finlands flaggas dag" ("Day of Finland's flag") celebrated annually since 1934. There are also several other flag days in Finland.|
|Faroe Islands||April 25|
|Georgia||January 14||საქართველოს სახელმწიფო დროშის დღე (sak'art'velos sakhelmts'ip'o droshis dghe, "Day of the State Flag of Georgia"), (2004).|
|Greece||October 27||"Ημέρα της σημαίας (imera tis simeas,"Day of the Flag")|
|India||December 7||Armed Forces Flag Day honours the soldiers, airmen and sailors of India.|
|Italy||January 7||Festa del tricolore ("Festival of the Tricolour") commemorates adoption of the Italian flag in 1797.|
|Liberia||August 24||Flag day The holiday was first observed in an 1847 convention, when the founding fathers approved the flag's design along with establishing the new republic. |
|Lithuania||January 1||Vėliavos diena ("Flag's day") commemorates raising of the Lithuanian flag on Gediminas' Tower in 1919.|
|Macedonia||Every 1st and 15th day of each month.||Ден на македонското знаме (Den na makedonskoto zname, "Day of the Macedonian Flag"). Every 1st and 15th day of each month, the flag is changed in special ceremony. This celebrates the adoption of the flag.|
|Norway||May 17||Celebration of the Norwegian Constitution, signed on 17 May 1814. Now the national day of Norway.|
|Pakistan||August 11||The National Assembly adopted the country's flag on this day.|
|Peru||June 7||Commemorates the anniversary of the Battle of Arica and the sacrifice of Alfonso Ugarte.|
|Philippines||May 28||Araw ng Watawat ("Day of [the] Flag"), the anniversary of the 1898 Battle of Alapan where the flag was first used. Display of the flag in all places until Independence Day is encouraged, provided it follows Republic Act 8491.|
|Poland||May 2||A holiday introduced in 2004, it commemorates raising the flag on Siegessäule during the Battle of Berlin.|
|Romania||June 26||A holiday introduced in 1998, it celebrates Decree No. 1 of the Wallachian Provisional Government, which made the blue-yellow-red tricolour the national flag.|
|Russia||August 22||Commemorates raising of the present flag over the Russian Supreme Soviet building after a 1991 coup attempt.|
|Scotland||November 30||St. Andrew's Day, the national day of Scotland.|
|Sweden||June 6||Svenska flaggans dag ("Day of the Swedish Flag"), observed since late 19th century. Also the National Day of Sweden since 1983.|
|Turkmenistan||February 19||Commemorates the adoption of the nation's first flag after gaining independence from the Soviet Union.|
|Ukraine||August 23||День Державного прапора (Den Derzhavnoho prapora, "National Flag Day") commemorates the adoption of the Ukrainian flag; observed since 2004.|
|United States||June 14||Flag Day Commemorates adoption of the U.S. flag on 14 June 1777.|
See also 
- Gammage, Jeff (2008-06-14). "Flag Day loses importance but lives on in Phila". Philadelphia Inquirer. Archived from the original on 2008-06-20. Retrieved 2008-06-14.
- "Azerbaijan sets National Flag Day". Today.az. Retrieved 2010-05-22.
- "Azerbaijan marks National Flag Day". Today.az. November 9, 2012. Retrieved November 14, 2012.
- Jour du drapeau on the Mouvement national des Québécoises et des Québécois' website. (French)
- Loi sur le drapeau et les emblèmes du Québec (Law on the flag and the emblems of Québec) on the Quebec Government's website. (French)
- "An Act respecting the flag and emblems of Québec, R.S.Q. c. D-12.1". CanLII. Retrieved 2009-04-10.
- "Estonian Holidays in 2010". Estonian Foreign Ministry. Retrieved December 19, 2010.
- (Georgian) საქართველოს ორგანული კანონი საქართველოს სახელმწიფო დროშის შესახებ ("Law of Georgia on the State Flag of Georgia"). January 14, 2004. Parliament of Georgia. Accessed January 14, 2012.
- Liberia's Flag Day
- Macedonia got Flag Day – Macedonian
- Philippine Republic Act No. 8491 Chan Robles (www.chanrobles.com). Retrieved on 2013-05-07.
- Ukraine celebrates National Flag Day, Xinhua News Agency (23 August 2012)
Ceremony of hoisting Ukraine's national flag held at presidential administration, Kyiv Post (23 August 2011)
Україна відзначає День Державного прапора On Tuesday, August 23, all of Ukraine celebrates National Flag Day. Measures to raise the national flag are planned throughout the country., 1+1 (23 August 2011)
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