| 1 January | Cuba | Triumph of the Revolution 1959 |
| 4 January | Myanmar | Anniversary of Independence (1948) |
| 26 January | India | Proclamation of the Republic (1950) |
| 26 January | Australia | Australia Day (1788) |
| 4 February | Sri Lanka | |
| 6 February | New Zealand | Waitangi Day |
| 11 February | Iran | Victory of the Islamic Revolution of Iran |
| 15 February | Serbia | |
| 16 February | Lithuania | Restoration of the Lithuanian State (1918) |
| 18 February | Gambia | Independence Day |
| 23 February | Japan | The Birthday of His Majesty the Emperor of Japan |
| 23 February | Brunei Darussalam | |
| 23 February | Guyana | |
| 24 February | Estonia | Independence Day (1918) |
| 25 February | Kuwait | (1961) |
| 27 February | Dominican Republic | Independence Day |
| 3 March | Bulgaria | National Holiday (Bulgaria's Liberation from the Ottoman Empire, 1878) |
| 12 March | Mauritius | |
| 17 March | Ireland | St. Patrick's Day (461) |
| 20 March | Tunisia | |
| 23 March | Pakistan | Pakistan Day |
| 25 March | Greece | Anniversary of the Proclamation of the Independence (1821) |
| 26 March | Bangladesh | Independence and National Day |
| 17 April | Syria | |
| 18 April | Zimbabwe | Independence Day |
| 27 April | Netherlands | Official Celebration of the Birthday of H.M. King Willem-Alexander |
| 27 April | South Africa | Freedom Day |
| 27 April | Sierra Leone | National day (1961) |
| 3 May | Poland | Constitution Day |
| 8 May | Holy See | Election of His Holiness Pope Leo XIV |
| 14 May | Israel | (variable) Proclamation of Independence (1948) |
| 15 May | Paraguay | Independence Day (1811) |
| 17 May | Norway | Constitution Day (1814) |
| 20 May | Cameroon | |
| 22 May | Yemen | Day of Unification |
| 24 May | Eritrea | |
| 25 May | Argentina | Anniversary of the Revolution of May (1810) |
| 25 May | Jordan | Independence Day (1946) |
| 26 May | Georgia | Independence Day |
| 28 May | Ethiopia | |
| 28 May | Azerbaijan | Independence Day |
| 30 May | Croatia | |
| 2 June | Italy | Proclamation of the Republic (1946) |
| 5 June | Denmark | Constitution Day (1849) |
| 6 June | Sweden | (1523) |
| 10 June | Portugal | |
| 12 June | Russian Federation | |
| 12 June | Philippines | Independence Day (1898) |
| 17 June | Iceland | Republic Day (1944) |
| 17 June | United Kingdom | Official Celebration of the Birthday of H.M. King Charles III (1948) |
| 23 June | Luxembourg | |
| 25 June | Slovenia | (Statehood Day) |
| 25 June | Mozambique | Independence Day |
| 26 June | Madagascar | |
| 27 June | Djibouti | |
| 29 June | Seychelles | |
| 30 June | Democratic Republic of the Congo | Anniversary of Independence |
| 1 July | Canada | Canada Day (1867) |
| 1 July | Rwanda | |
| 3 July | Belarus | Independence Day |
| 4 July | United States of America | Proclamation of Independence (1776) |
| 5 July | Cape Verde | |
| 5 July | Venezuela | Independence Day (1811) |
| 6 July | Comoros | |
| 6 July | Malawi | Independence Day |
| 11 July | Mongolia | |
| 12 July | Sao Tome and Principe | |
| 14 July | France | |
| 20 July | Colombia | Proclamation of Independence (1810) |
| 21 July | Belgium | (1831) |
| 23 July | Egypt | Revolution Day |
| 26 July | Liberia | Independence day (1847) |
| 28 July | Peru | Proclamation of Independence (1821) |
| 30 July | Morocco | |
| 1 August | Switzerland | Foundation of the Confederation (1291) |
| 1 August | Benin | Independence Day |
| 6 August | Bolivia | Independence Day (1825) |
| 6 August | Jamaica | Independence Day |
| 9 August | Singapore | (1965) |
| 10 August | Ecuador | Proclamation of Independence (1809) |
| 15 August | India | Independence Day (1947) |
| 15 August | Congo (Republic of the Congo) | Anniversary of Independence (1960) |
| 17 August | Indonesia | Proclamation of Independence (1945) |
| 17 August | Gabon | Proclamation of Independence (1960) |
| 19 August | Afghanistan | Independence Day (1919) |
| 20 August | Hungary | |
| 24 August | Ukraine | Independence Day |
| 25 August | Uruguay | Proclamation of Independence (1825) |
| 27 August | Moldova | Independence Day |
| 31 August | Malaysia | (1957) |
| 31 August | Trinidad and Tobago | Independence Day (1962) |
| 31 August | Kyrgyzstan | Independence day |
| 1 September | Slovakia | Day of the Constitution |
| 1 September | Uzbekistan | Independence Day |
| 2 September | Vietnam | Independence Day (1945) |
| 3 September | San Marino | National Day |
| 6 September | Eswatini | Independence Day Birthday of Head of State King Mswati III: 19th April |
| 7 September | Brazil | Proclamation of Independence (1822) |
| 8 September | Republic of North Macedonia | Independence Day (1991) |
| 8 September | Andorra | |
| 9 September | Democratic People's Republic of Korea | Anniversary of the Foundation of the Democratic People's Republic of Korea (1948) |
| 15 September | El Salvador | |
| 15 September | Honduras | Independence Day (1821) |
| 15 September | Guatemala | |
| 16 September | Mexico | Anniversary of the Independence (1810) |
| 18 September | Chile | |
| 20 September | Nepal | National day |
| 21 September | Malta | Independence Day |
| 21 September | Armenia | Independence Day |
| 23 September | Saudi Arabia | |
| 24 September | Guinea-Bissau | |
| 27 September | Turkmenistan | Independence Day of Turkmenistan |
| 30 September | Botswana | |
| 1 October | China | Anniversary of the Founding of the People's Republic of China (1949) |
| 1 October | Cyprus | Independence Day (1960) |
| 1 October | Nigeria | |
| 2 October | Guinea | Independence Day |
| 3 October | Republic of Korea | |
| 3 October | Germany | Day of German Unity (1990) |
| 3 October | Iraq | |
| 4 October | Lesotho | Independence Day |
| 9 October | Uganda | |
| 12 October | Spain | |
| 24 October | Zambia | Anniversary of Independence |
| 25 October | Kazakhstan | The Republic Day |
| 26 October | Austria | |
| 27 October | Saint Vincent and the Grenadines | National day |
| 28 October | Czech Republic | (1918) |
| 29 October | Türkiye | Proclamation of the Republic (1923) |
| 3 November | Panama | Independence Day (1903) |
| 9 November | Cambodia | Independence day |
| 11 November | Angola | Independence Day (1975) |
| 15 November | Palestine | Declaration of Independence of Palestine |
| 15 November | Belgium | King's Day |
| 18 November | Oman | |
| 18 November | Latvia | Independence Day |
| 22 November | Lebanon | Independence Day (1943) |
| 28 November | Albania | Independence and Flag Day |
| 28 November | Mauritania | |
| 30 November | Barbados | |
| 1 December | Romania | |
| 1 December | Central African Republic | |
| 2 December | Laos | National Day |
| 2 December | United Arab Emirates | |
| 5 December | Thailand | Birthday Anniversary of H.M. King Bhumibol Adulyadej (1927) |
| 9 December | Tanzania | |
| 11 December | Burkina Faso | Proclamation of the Republic (1958) |
| 12 December | Kenya | National Day |
| 17 December | Bhutan | |
| 18 December | Niger | Proclamation of the Republic |
| 18 December | Qatar | |
| 24 December | Libya | Independence Day of the State of Libya |
