A National Day is the date on which a nation of non-sovereign country celebrates their nationhood. A National Day will often be declared a national holiday in the country the National Day occurs in.
National Days in January | |
| 1 January | Cuba National Liberation Day |
| 4 January | Myanmar Independence Day (1948) |
| 26 January | Australia Day |
| 26 January | India Republic Day |
| 31 January | Nauru Independence Day |
National Days in February | |
|---|---|
| 4 February | Sri Lanka National Day |
| 6 February | New Zealand Waitangi Day (1840) |
| 11 February | Iran Victory of the Islamic Revolution |
| 15 February | Serbia Sovereignty Day |
| 16 February | Lithuania Independence Day (1918) |
| 23 February | Brunei Darussalam National Day |
| 23 February | Guyana Republic Day (1970) |
| 24 February | Estonia Independence Day (1918) |
| 23 February | Japan National Day |
| 25 February | Kuwait National Day |
National Days in March | |
| 1 March | Wales St David's Day |
| 1 March | Bosnia and Herzegovina Statehood Day |
| 3 March | Bulgaria National Day |
| 6 March | Ghana Independence Day |
| 12 March | Mauritius National Day |
| 13 March | Holy See Anniversary of the Election of His Holiness Pope Francis |
| 17 March | Ireland St Patrick’s Day |
| 23 March | Pakistan Day |
| 25 March | Greece National Day |
| 26 March | Bangladesh Independence Day and National Day |
National Days in April | |
| 16 April | Denmark Birthday of Her Majesty Queen Margrethe II |
| 18 April | Zimbabwe Independence Day |
| 23 April | England St George's Day |
| 27 April | South Africa Freedom Day |
| 27 April | Sierra Leone Independence Day |
| 27 April | Netherlands King's Day |
National Days in May | |
| 1 May | Marshall Islands National Day |
| 3 May | Poland National Day (1791) |
| 5 May | Israel Independence Day |
| 9 May | European Union Europe Day |
| 17 May | Norway Constitution Day (1814) |
| 24 May | Eritrea Independence Day |
| 25 May | Argentina National Day (formation of first Argentine Government in 1810) |
| 25 May | Jordan National Day |
| 30 May | Croatia National Day |
National Days in June | |
| 1 June | Samoa Independence Day (1962) |
| 2 June | Italy Foundation of the Italian Republic (1946) |
| 6 June | Sweden National Day |
| 10 June | Portugal National Day |
| 12 June | Philippines Independence Day |
| 12 June | Russia Sovereignty Day |
| 17 June | Iceland National Day (re-establishment of the Republic in 1944) |
| 18 June | Seychelles National Day |
| 23 June | Luxembourg National Day |
| 25 June | Slovenia National Day |
National Days in July | |
| 1 July | Canada Day (1867) |
| 4 July | United States of America Independence Day (1776) |
| 5 July | Venezuela Independence Day (1811) |
| 7 July | Nepal National Day |
| 7 July | Solomon Islands Independence Day |
| 9 July | Argentina Independence Day |
| 11 July | Mongolia Day of People’s Revolution (1921) |
| 12 July | Kiribati Independence Day |
| 13 July | Montenegro Statehood Day |
| 14 July | France Bastille Day (1789) |
| 17 July | Iraq National Day |
| 20 July | Colombia Independence Day |
| 21 July | Belgium National Day |
| 23 July | Arab Republic of Egypt National Day |
| 26 July | Maldives Independence Day |
| 28 July | Peru Independence Day (1821) |
| 30 July | Morocco The Day of Enthronement of His Majesty King Mohammed VI |
| 30 July | Vanuatu Independence Day |
National Days in August | |
| 1 August | Switzerland Confederation Day (1291) |
| 4 August | Cook Islands Constitution Day |
| 6 August | Bolivia Independence Day |
| 6 August | Jamaica Independence Day |
| 9 August | Singapore Independence Day |
| 10 August | Ecuador Independence Day |
| 14 August | Pakistan Independence Day (1947) |
| 15 August | India Independence Day (1947) |
| 17 August | Indonesia Independence Day (1945) |
| 19 August | Afghanistan Independence Day |
| 20 August | Hungary National Day |
| 24 August | Ukraine National Day |
| 25 August | Uruguay Independence Day (1825) |
| 31 August | Malaysia Independence Day |
| 31 August | Trinidad and Tobago Independence Day |
National Days in September | |
| 1 September | Libya The Great First of September Revolution |
| 1 September | Slovak Republic Constitution Day |
| 2 September | Viet Nam National Day |
| 7 September | Brazil Independence Day (1822) |
| 9 September | Democratic People's Republic of Korea Day of Founding (1948) |
| 15 September | Costa Rica Independence Day |
| 15 September | El Salvador National Day |
| 15 September | Nicaragua National Day |
| 16 September | Mexico Independence Day |
| 16 September | Papua New Guinea Independence Day |
| 18 September | Chile National Day |
| 21 September | Malta Independence Day |
| 22 September | Malta Independence Day |
| 23 September | Saudi Arabia National Day |
| 30 September | Botswana Day |
National Days in October | |
| 1 October | China Anniversary of the Founding of the People’s Republic of China |
| 1 October | Cyprus Independence Day |
| 1 October | Nigeria Independence Day |
| 1 October | Tuvalu Independence Day |
| 3 October | Germany Unification Day |
| 3 October | Korea National Foundation Day |
| 4 October | Lesotho National Day |
| 10 October | Fiji Independence Day |
| 12 October | Spain National Day |
| 19 October | Niue Constitution Day |
| 24 October | Zambia Independence Day |
| 26 October | Austria National Day |
| 28 October | Czech Republic National Day |
| 29 October | Türkiye Republic Day |
National Days in November | |
| 1 November | Algeria National Day |
| 3 November | Micronesia National Day |
| 3 November | Panama Independence Day |
| 4 November | Tonga National Day |
| 9 November | Cambodia National Day |
| 18 November | Latvia Proclamation of Independence |
| 18 November | Oman National Day (His Majesty the Sultan's Birthday) |
| 19 November | Monaco National Day |
| 22 November | Lebanon Independence Day |
| 28 November | Albania Independence Day (1912) |
| 28 November | Timor-Leste Independence Day |
| 30 November | Scotland St Andrew's Day |
| 30 November | Barbados Independence Day |
National Days in December | |
| 1 December | Romania National Day |
| 2 December | Laos National Day (1975) |
| 2 December | United Arab Emirates National Day |
| 5 December | Thailand National Day (King’s Birthday) |
| 6 December | Finland Independence Day (1917) |
| 12 December | Kenya Independence Day |
| 16 December | Bahrain National Day |
| 16 December | Kazakhstan Independence Day |
| 18 December | Qatar National Day |