| Country | Independence |
| Montserrat | none (overseas territory of the UK) |
| Morocco | 2 March 1956 (from France) |
| Mozambique | 25 June 1975 (from Portugal) |
| Namibia | 21 March 1990 (from South African mandate) |
| Nauru | 31 January 1968 (from the Australia-, NZ-, and UK-administered UN trusteeship) |
| Navassa Island | void |
| Nepal | 1768 (unified by Prithvi Narayan Shah) |
| Netherlands | 23 January 1579 (the northern provinces of the Low Countries conclude the Union of Utrecht breaking with Spain; on 26 July 1581 they formally declared their independence with an Act of Abjuration; however, it was not until 30 January 1648 and the Peace of Westphalia that Spain recognized this independence) |
| New Caledonia | none (overseas territory of France); note - a referendum on independence was held in 1998 but did not pass; a new referendum is scheduled to take place between 2014 and 2019 |
| New Zealand | 26 September 1907 (from the UK) |
| Nicaragua | 15 September 1821 (from Spain) |
| Niger | 3 August 1960 (from France) |
| Nigeria | 1 October 1960 (from the UK) |
| Niue | 19 October 1974 (Niue became a self-governing parliamentary government in free association with New Zealand) |
| Norfolk Island | none (territory of Australia) |
| Northern Mariana Islands | none (commonwealth in political union with the US) |
| Norway | 7 June 1905 (Norway declared the union with Sweden dissolved); 26 October 1905 (Sweden agreed to the repeal of the union) |
| Oman | 1650 (expulsion of the Portuguese) |