Naizin (French pronunciation: [nɛzɛ̃]; Breton: Neizin) is a former commune in the Morbihan department of Brittany in north-western France.

Inhabitants of Naizin are called in French Naizinois.

On 1 January 2016, Moustoir-Remungol, Naizin and Remungol merged becoming one commune of Évellys.

[3] The river Ével forms most of the commune's southern border.

This Morbihan geographical article is a stub.