Gangavathar is a 1942 Tamil-language film directed by C. K. Sathasivam and produced by Sundaram Sound Studio, Madras. The film starred N. C. Vasanthakokilam in the lead.
The film was based on the story of the Hindu sage Valmiki (played by Honnappa Bhagavathar) who starts as a bandit and eventually undergoes spiritual transformation into a religious mendicant. Valmiki falls in love with a princess (played by Jeevarathnam) who is kidnapped by the villain (played by T. S. Balaiah).