Idhu Oru Thodar Kathai () is a 1987 Indian Tamil-language film directed by Anu Mohan in his debut. The film stars Mohan, Amala and Rekha. It was released on 11 April 1987.
Anu Mohan, an erstwhile assistant of R. Sundarrajan, made his directorial debut with this film. Sundarrajan also wrote the story and dialogues for the film.
Soundtrack was composed by Gangai Amaran who also wrote the lyrics.
Idhu Oru Thodar Kathai was released on 11 April 1987. The Indian Express wrote, "Film is a world apart. Money is needed to translate ideas on to celluloid, and again, lucre is a dominating, if not the only preoccupation of most of the people who matter in films. So much so, creativity and close-to-life ideas tend to be crushed under the iron feet of the worshippers of Mammon. That's exactly why a film like Idhu Oru Thodarkadhai makes you happy."