Doctor is a 2021 Indian Tamil-language action comedy film written and directed by Nelson Dilipkumar. It was produced by Sivakarthikeyan under his Sivakarthikeyan Productions company along with KJR Studios. The film stars Sivakarthikeyan, Vinay Rai and Priyanka Mohan, with Archana Chandhoke, Yogi Babu, Milind Soman, Redin Kingsley, Deepa Shankar, Sunil Reddy and Shiva Aravind. It follows a military doctor, who seeks to rescue his ex-fiancée's niece from a child trafficker.