Napiainen or Napsu, as we call her : Got her name in a "shelter".
Nicknames: Napsu-Neiti, Nanna, Nappariina, Nuunuu etc.

Narri : Got his in a "shelter". He kind of has another name = Narri Nikanor, but I'm saving the name Nikanor for my next male cat
Nicknames: Napanteri, Isomies, Kolli, Kingi

Nougat : I named her. Her name kind of had to start with the letter "N", so Nougat sounded nice
Nicknames: Neiti, kakara, äpärä, vaavi