Ayyappanum Koshiyum (transl. Ayyappan and Koshy) is a 2020 Indian Malayalam-language action thriller film written and directed by Sachy (in his last film as director). Produced by Ranjith and P. M. Sasidharan, starring Biju Menon and Prithviraj Sukumaran title roles with Gowri Nandha,Anna Rajan, Ranjith,Anil Nedumangad, Anu Mohan, Sabumon Abdusamad,Shaju Shridhar and Kottayam Ramesh

Ayyappanum Koshiyum was released on 7 February 2020, and was one of the highest grossing Malayalam films of 2020, earning ₹36.33 crore worldwide. It won 4 awards at the 68th National Film Awards, including the National Awards for Best Direction for Sachy, Best Supporting Actor for Biju Menon, Best Female Playback Singer for Nanjiyamma, and Best Stunt Choreography for Mafia Sasi, Supreme Sundar, and Rajasekhar.

A Telugu remake, Bheemla Nayak starring Pawan Kalyan and Rana Daggubati was released on 25 February 2022. The film is also going to be remade in Hindi with John Abraham in the lead.