Krishnan Vandhaan () is a 1987 Indian Tamil language comedy drama film, directed by K. Vijayan and produced by Thengai Srinivasan. The film stars Sivaji Ganesan, K. R. Vijaya, Mohan and Rekha. It was released on 28 August 1987, and failed at the box-office.
Krishnan Vandhaan was the first film produced by Thengai Srinivasan.
The music was composed by Ilaiyaraaja.
N. Krishnaswamy of The Indian Express wrote the film "bides to keep audience beguiled" while praising the acting of Ganesan and other actors and also praised Ilaiyaraaja's music and the lyrics, saying they "mesh with the narrative". The film was also reviewed by Jayamanmadhan of Kalki.