Kanmani Raja is a 1974 Indian Tamil-language drama film directed by Devaraj–Mohan and written by Balamurugan.

The film stars Sivakumar and Lakshmi, with M. N. Rajam, Manorama, Kumari Padmini and Thengai Srinivasan in supporting roles.

[1] The music was composed by M. S. Viswanathan, with lyrics by Kannadasan.

[2][3] Kanthan of Kalki praised the acting of Sivakumar, Lakshmi and Rajam and added it is necessary to add flavour by adding many delicious programs, but they have made it impossible to enjoy anything by adding all the things they saw and called Devaraj–Mohan's direction as good but Balamurugan's story and dialogues as disappointing.

[4] The film did not do well at the box office.