Nainar is an Indian word which may refer to:
Nainar Nagendran, an Indian politician in Tamil Nadu, India A title given to Tamil Jains living in Tamil Nadu, India A subgroup of the caste Udayar in Tamil Nadu, India A Muslim community in Cochin (see Nainars) Gopi Nainar, an Indian director; see Aramm
See also Nayanar (disambiguation) Nayan (disambiguation) Naina (disambiguation)