Nicaragua
Independence Day, 15 September (1821)
Niger
Republic Day, 18 December (1958)
Nigeria
Independence Day (National Day), 1 October (1960)
Niue
Waitangi Day (Treaty of Waitangi established British
sovereignty over New Zealand), 6 February (1840)
Norfolk Island
Bounty Day (commemorates the arrival of Pitcairn
Islanders), 8 June (1856)
Northern Mariana Islands
Commonwealth Day, 8 January (1978)
Norway
Constitution Day, 17 May (1814)
Oman
Birthday of Sultan QABOOS, 18 November (1940)
Pakistan
Republic Day, 23 March (1956)
Palau
Constitution Day, 9 July (1979)