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# Flag Days of April

##

Last modified: 2026-04-18 by rob raeside
Keywords: flag days |
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### Months of the Year

January | February | March | April | May | June | July | August | September | October | November | December | Other

### Days of April

1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30

### See also:

- Flag Days of the World (main page)

## 1

- Cyprus - Liberation Struggle Anniversary, 1955
- Denmark - Maundy Thursday (varies: thursday before Easter)
- Iran - Islamic Republic Day, 1979
- Mauritania
  by Željko Heimer, colours corrected by António Martins
  - Flag Day, 1959

## 2

- Argentina - War Veterans' Day
- Azores
  by Graham Bartram, António Martins, and Jorge Candeias
  - Flag Day, 1979
- Denmark - Battle of Copenhagen, 1659
- Denmark - Good Friday (half staff; varies: Friday before Easter)
- Iceland - Good Friday (half staff; varies: Friday before Easter)

## 3

- Guinea - Second Republic Day, 1984

## 4

- - Easter (varies: Sunday 22 March - 25 April)
  - Denmark
  - Iceland
  - Norway
  - Sweden
- Hungary - Liberation Day, 1945
- Monaco
  byAntónio Martins
  - Flag Day, 1881
- Senegal - Independence Day
- NATO - Treaty Signing Anniversary, 1949

## [5]

## 6

- Ethiopia - Liberation Day, 1941
- Sudan - April Revolution, 1985
- Thailand - Chakri Dynasty Day, 1782
- USA - Army Day

## 7

- Albania
  by Carlos Esparza
  - Flag Day, 1912
- Armenia - Mother's Day
- Belgium - Peacekeepers' Memorial Day
- Liberia - World Health Day
- Rwanda - Day of National Mourning
- United Nations - World Health Day

## [8]

## 9

- Denmark - Occupation, 1940 (half staff until 12.02)
- Finland - Mikael Agricola's Birthday, 1508
- Georgia - Day of National Unity, 1991
- Philippines - Bataan Day, 1945
- Tunisia - Martyr's Day
- UK - His Majesty's Wedding Day
- USA - National Former-prisoner-of-war Recognition Day

## [10]

## 11

- Costa Rica - Battle of Rivas Day, 1856
- Uganda - Liberation Day, 1979

## 12

- Bedfordshire, England - Anniversary of the Granting of Arms

## 13

- USA - Thomas Jefferson's Birthday (unofficial), 1743

## 14

- Organization of American States - Pan-American Day, 1890

## 15

- Maine, USA - Patriot's Day (varies)
- North Korea - Kim Il Sung's Birthday, 1912

## 16

- Luxembourg - Birthday of Grand Duke Henri of Luxembourg
- Orkney, Scotland - St. Magnus Day

## 17

- American Samoa - Flag Day
- Syria - Independence Day, 1946

## 18

- Denmark - Battle of Dybbøl, 1864
- Israel - Holocaust Memorial Day (half mast; varies: 27 Nisan in the Hebrew calender)
- Zimbabwe - Independence Day, 1980

## 19

- Massachusetts, USA - Battle of Lexington and Concord, 1775
- Sierra Leone - Republic Day, 1971
- eSwatini - King's Birthday
- Uruguay - Return of the 33 Exiles, 1825
- Venezuela - Declaration of Independence, 1810

## 20

- Venezuela
  by Željko Heimer
  - Flag Day, 1836

## 21

- Brazil - Tiradentes Day, 1792
- Texas, USA - Battle of San Jacinto, 1836
- Vatican - Death of the previous pope (half-staff)

## 22

- Brazil - Discovery Day, 1500
- Iceland - First Day of Summer (varies: Thursday 19 - 25 April)
- Oklahoma, USA - Oklahoma Day, 1889
- Spain - Queen Isabella Day, 1451
- World - Earth Day, 1970

## 23

- England, UK - St. George's Day
- Turkey - Independence Day, 1920

## 24

- Armenia - Genocide Memorial Day, 1915
- Gambia - Constitution Day, 1970

## 25

- Australia - ANZAC Day
- Egypt - Sinai Liberation Day, 1982
- Faroe Islands
  by Mark Sensen
  - Flag Day, 1948
- Huntingdonshire, England - Birth-date of Oliver Cromwell
- Israel - IDF memorial day (half mast; varies: 4 Iyar in the Hebrew calender)
- Italy - Liberation Day, 1945
- New Zealand - ANZAC Day
- Portugal - Revolution Anniversary, 1974
- eSwatini
  - Flag Day
- Tonga - ANZAC Day

## 26

- Israel - Independence Day, 14 may 1948 (varies: 5 Iyar in the Hebrew calendar)
- Tanzania - Union Day, 1961
- USA - Arbor Day (varies)

## 27

- Afghanistan - Saur Revolution Day, 1978
- Finland - National Veterans' Day
- The Netherlands - King William Alexander's Birthday: King's Day (Koningsdag)
- Sierra Leone - Independence Day, 1960
- Slovenia - National Resistance Day (World War II)
- South Africa - Freedom Day, 1994
- Togo - Independence Day, 1960

## 28

- Åland Islands
  by Jan Oskar Engene
  - Flag Day, 1954
- Maryland, USA - Ratification Day, 1788

## 29

- Denmark - Princess Bendikte's Birthday, 1944
- Japan - Greenery Day

## 30

- Denmark - Great Prayer Day (varies: fourth Friday after Easter)
- Louisiana, USA - Admission Day, 1812
- Sweden - King Carl XVI Gustaf's Birthday, Konungens födelsedag, 1946
- Vietnam - Saigon Liberation Day, 1975

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