Sonthakkaran () is a 1989 Indian Tamil-language action film, directed by L. Raja and produced by M. Saravanan, M. Balasubramanian & M. S. Guhan. The film stars Arjun and Nirosha, while Sarath Babu, Madhuri, Radha Ravi and S. S. Chandran portray pivotal roles. The film was released on 16 June 1989.
Policeman Rajadurai "Raja" arrests Yuvaraj for raping a woman and killing an old man. Chalapathi Rao, the father of Yuvaraj, gets Rajadurai trapped in a false rape charge and he loses his job. Yuvaraj comes back from jail to take revenge against Rajadurai.
The music was composed by Chandrabose and lyrics were written by Vairamuthu.