Annamitta Kai () is a 1972 Indian Tamil-language film written by G. Balasubramaniam and directed by M. Krishnan Nair, starring M. G. Ramachandran, Jayalalithaa and Bharathi. It was produced by Ramachandra Productions, owned by M. S. Sivaswamy. The film was released on 15 September 1972.
To right the past errors of their father, the half brothers Durairaj and Selvaraj switch identities, making Selvaraj the heir. Durairaj goes to take care of Selvaraj's blind mother, and tries to get his brother back to a virtuous life.
The song "16 Vayathinilae 17 Pillayamma" was shot at Ashley Estate, Kuttikkanam, with 17 children. As the main cinematographer K. S. Prasad was injured before the filming of a scene, associate cameraman Babu shot the scene instead. This was Ramachandran's last black and white film.
The music was composed by K. V. Mahadevan, with lyrics by Vaali.
This was the last film of Ramachandran while he was in the Dravida Munnetra Kazhagam. A month after the release of this film, he started his own party (All India Anna Dravida Munnetra Kazhagam).