Kaivantha Kalai is a 2006 Indian Tamil-language comedy film written and directed by Pandiarajan.
The film stars Prithvi Rajan, Sruthi, Manivannan, and Pandiarajan himself in important roles.
Released on June 15, 2006, it is a sequel to Aan Paavam (1985).
The story revolves around Kannan, who falls for Kausalya, a timid schoolgoing girl. He learns that she is his father's sister and becomes determined to wed her.
Music for the film is composed by Dhina.
Kaivantha Kalai received praise from Malini Mannath of Chennai Online as "a fairly engaging and a neatly packaged wholesome family entertainer".