Ayyappanum Koshiyum (transl.?Ayyappan and Koshi) is a 2020 Indian Malayalam-language action thriller film written and directed by Sachy. It was produced by Ranjith and P. M. Sasidharan under the company Gold Coin Motion Picture Company. The film stars Prithviraj Sukumaran and Biju Menon in the title roles. The story revolves around the conflict between Koshy Kurien, an influential and wealthy ex-Havildar and Ayyappan Nair, a Sub-inspector in Attappadi. The music was provided by Jakes Bejoy.
Principal photography took place from October to December 2019. Ayyappanum Koshiyum was released on 7 February 2020. The film met with positive response from critics and was a commercial success at the box office. It was the second highest-grossing Malayalam film of the year, behind Anjaam Pathiraa.