Nandanar was a Nayanar saint in the Hindu sect of Shaivism.

Nandanar may also refer to:

Nandanar (author) (1926–1974), pseudonym of Indian writer P. C. Gopalan Nandanar (1935 film) or Bhakta Nandanar, 1935 Indian film by Maniklal Dandan Nandanar (1942 film), a 1942 Indian film

See also Nandan (disambiguation)