Singham is a 2011 Indian Hindi-language action film directed by Rohit Shetty and produced by Reliance Entertainment, based on a script by writers Yunus Sajawal and Farhad-Sajid. It serves as the first installment of Shetty's Cop Universe. A remake of the 2010 Tamil film of the same title by Hari, the film stars Ajay Devgn in the lead role as a police officer named Bajirao Singham alongside Kajal Aggarwal and Prakash Raj, who reprises his role from the original film.

Singham marked Devgn's return to the action genre after several years. It was theatrically released in India on 22 July 2011 with general positive reviews from the critics towards praise for action-emotional drama, dialogues and homage to 70s masala films. It opened with strong box office response; the film earned ₹876 million in India on the first day and a worldwide total of ₹1.41 billion against a ₹410 million budget, becoming a box-office superhit.

Singham gained a cult film status over the years, particularly for Devgn's protrayal of Bajirao. After the film's success at the box office, Devgn and Shetty collaborated for the sequel Singham Returns (2014) and Singham Again (2024). Devgn reprised his role in Shetty's directorials Simmba (2018) and Sooryavanshi (2021) which together form Shetty's Cop Universe.