Ontari (transl. Loner) is a 2008 Indian Telugu-language psychological action drama film produced by Pokuri Babu Rao on Ee Taram Films banner, directed by B.V. Ramana. Starring Gopichand, Bhavana and music composed by Mani Sharma. The film was released theatrically on 14 February 2008.Its a loose adaptation of 2004 British film Dead Man's Shoes.

Ontari received mixed reviews from critics, with praise for the performance of Gopichand, humour, and editing, but criticized weak screenplay, and Ramana's direction. The film was remade twice in Bangladesh as Boss Number One (2011) and Premik Number One (2013) with Shakib Khan.