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# Flag Days of May

##

Last modified: 2026-05-23 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 May

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 | 31

### See also:

- Flag Days of the World (main page)

## 1

- Argentina - Labour Day
- Austria
  by Željko Heimer
  - Flag Day, 1945
- Germany - Day of Labour (Tag der Arbeit)
- Latvia - Convocation of the Constituent Assembly of the Republic of Latvia (1920)
- Marshall Islands - Constitution Day, 1979
- Poland - May 1st holiday (formerly Labor Day) - civil flag to be used
- Staffordshire, England - Anniversary of Wedgwood Pottery
- USA - Loyalty / Law Day
- World - Spring and Labor Holiday
- World - Labor Day or May Day

## 2

- Egypt - Sporting Holiday
- Poland
  by António Martins
  - Flag Day, 2004 - civil flag to be flown
- World - Spring and Labor Holiday

## 3

- Japan - Constitution Memorial Day, 1947
- Poland - May 3rd national holiday (formerly Constitution Day) - civil flag to be flown

## 4

- Bosnia
  by Jan Oskar Engene
  - Flag Day, 1992
- China - Youth Day
- Latvia - Declaration of Independence, 1990
- The Netherlands - Memorial Day (half staff, 18.00 to sunset)
- Tonga - Crown Prince's Birthday, 1948
- Rhode Island, USA - Independence Day, 1776
- Surrey, England - Surrey Day
- USA - International Fire-fighters Day

## 5

- Belgium - Day of the Council of Europe, 1949
- Denmark - Liberation Day, 1945
- Germany - Europe Day
- Japan - Children's Day
- Lithuania - Mother's Day
- Mexico - Cinco de Mayo
- The Netherlands - Liberation Day, 1945
- Palau - Senior Citizens' Day
- Thailand - Coronation Day

## 6

- Philippines - Day of Bravery, 1942
- UK - Coronation Day, 2023
- Vatican - Swiss Guard Swearing-in Ceremony (Barracks & Cortile San Damaso)

## [7]

## 8

- Belgium - Victory of the Allies, 1945
- Czech Republic - Liberation Day, 1945
- France - Victory Day, 1945
- Norway - Liberation Day, 1945
- Poland - National Victory Day
- USA - Mothers Day (second Sunday of May)
- USA - Victory-in-Europe Day
- Vatican - Anniversary of Election of Pope Leo XIV

## 9

- Belgium - Europe Day
- Channel Islands (Guernsey, Jersey) Liberation Day
- Croatia - Victory Day
- Denmark - Battle of Helgoland, 1864
- European Union - Europe Day
- Finland - Europe Day
- Russia - Victory Day, 1945
- Ukraine - Victory Day, 1945

## 10

- Channel Islands (Sark) Liberation Day
- Micronesia - Constitution Day, 1979
- South Africa - Inauguration Day

## 11

- Minnesota, USA - Minnesota Day, 1858
- Somerset, England - King Alfred Gathers the People Day

## 12

- Estonia - Mother's Day
- Finland - J. V. Snelman's Birthday, 1806
- Finland - Mother's Day (varies: second Sunday)
- Latvia - Mother's Day
- USA - Mother's Day (varies)

## 13

- Comoros - Second Coup d'Etat, 1978
- Denmark - Ascension Day (varies: sixth thursday after Easter)

## 14

- Israel - Independence Day
- Liberia - National Unification Day
- Malawi - Kamuzu Banda's Birthday, 1906
- Paraguay - Flag Day (continues to 15 May)

## 15

- Finland - Remembrance Day
- Paraguay - Independence Day, 1811
- USA - Peace Officers Memorial Day (half staff, except on Armed Forces Day)
- USA - Armed Forces Day (third Saturday of May)

## 16

- Middlesex, England - Anniversary of the Battle of Albuera

## 17

- The Netherlands - birthday of Queen Máxima
- Norway - Constitution Day, Grunnlovsdag
- Palestine - Liberation of Gaza, 1994

## 18

- Haiti
  by Željko Heimer
  - Flag and University Day, 1803
- Niger - National Movement for Social Development Day
- Sweden - St. Erik's Day
- Uruguay - Battle of Las Piedras Day, 1811
- USA - Armed Forces Day (varies; 3 Saturday of May)
- Vatican - Anniversary of Inauguration of Pontificate

## 19

- Finland - Memorial Day (varies; 3rd Sunday)
- Somerset, England - St Dunstan’s Day
- Turkey - Youth and Sports Day
- Vietnam - Ho Chi Minh's Birthday, 1890

## 20

- Cameroon - Constitution Reform Day, 1972
- Cayman Islands - Discovery Day (varies; 3rd Monday of May)
- Cuba - Independence Day, 1902
- Sudan
  by Željko Heimer
  - Flag Day, 1970

## 21

- Chile - Battle of Iquique, 1879
- Ontario - Ontario Flag Day, 1965
- Montenegro - Independence Day, 2006
- St. Helena - Discovery Day, 1502

## 22

- Sri Lanka - Proclamation of the Republic Day, 1972
- USA - National Maritime Day
- Yemen - Day of National Unity, 1990

## 23

- - Pentecost / Whit Sunday (varies: Sunday 7 weeks after Easter)
  - Denmark
  - Iceland
  - Norway
  - Sweden
- Germany - Constitution Day, 1949
- Jamaica - National Labor Day
- Morocco - Constitutional Amendment Day
- South Carolina, USA - Ratification Day, 1788

## 24

- Bermuda - Bermuda Day
- Bulgaria - Culture Day
- Ecuador - Battle of Pichincha Day, 1822
- Eritrea - Independence Day, 1993
- Trinidad and Tobago - Commonwealth Day

## 25

- Africa - Africa Day
- Bermuda - Bermuda Day (last Friday of May)
- Argentina - May Revolution (1810) [half staffed flags are raised fully]
- Jordan - Independence Day, 1946
- Turks and Caicos Islands - JAGS McCartney Day (last Monday of May)
- USA - Memorial Day (last Monday of May; half-staff until noon, then hoisted fully till dusk)
- Wessex, England - St Aldhelm’s Day

## 26

- Denmark - King Frederik's Birthday, 1968
- Georgia - Independence Day, 1918
- Guyana - Independence Day, 1966
- Kent, England - St Augustine’s Day

## 27

- Belize - Commonwealth Day (varies)
- Uganda - Heroes' Day, 1980

## 28

- Armenia - First Armenian Republic Day, 1918
- Azerbaijan - Independence Day, 1918
- Ethiopia - Defeat of Mengistu Regime, 1991

## 29

- Finland
  by Ossi Raivio
  - Flag Day, 1918
- Rhode Island, USA - Ratification Day, 1790
- Wisconsin, USA - Admission Day, 1848

## 30

- Anguilla - Anguilla Day
- Croatia - Statehood Day
- Norfolk, England - St Walstan’s Day
- USA - Memorial Day (varies)

## 31

- Brunei - Armed Forces Anniversary Day, 1961
- Northamptonshire, England - Death-date of Earl Waltheof

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