Nicaragua
noun: Nicaraguan(s)
adjective: Nicaraguan
Niger
noun: Nigerien(s)
adjective: Nigerien
Nigeria
noun: Nigerian(s)
adjective: Nigerian
Niue
noun: Niuean(s)
adjective: Niuean
Norfolk Island
noun: Norfolk Islander(s)
adjective: Norfolk Islander(s)
Northern Mariana Islands
noun: NA (US citizens)
adjective: NA
Norway
noun: Norwegian(s)
adjective: Norwegian
Oman
noun: Omani(s)
adjective: Omani
Pakistan
noun: Pakistani(s)
adjective: Pakistani
Palau
noun: Palauan(s)
adjective: Palauan