Vaidehi Kathirunthal (transl. Vaidehi waited) is a 1984 Indian Tamil-language romantic drama film written and directed by R. Sundarrajan. The film stars Vijayakanth and Revathi as two villagers, Vellaisamy and Vaidehi, whose lives undergo a drastic turn when they meet. They discover that they must join forces to save a young couple from the wrath of the other villagers.

Vaidehi Kaathirundhal's story was developed based on songs that Ilaiyaraaja had composed, hoping to use them in potential film. The film was released on 23 October 1984, became a commercial success and emerged a breakthrough in Vijayakanth's career. It was remade in Telugu as Manchi Manasulu (1986), and in Kannada as Preethi Nee Illade Naa Hegirali (2004).