Mythri (transl. Alliance) is a 2015 Indian Kannada-language social drama film written and directed by Giriraj and produced by N. S. Rajkumar under the banner of Omkar Movies. It stars Mohanlal and Puneeth Rajkumar in extended cameo roles, and features Adithya Bharadwaj, Archana and Atul Kulkarni in substantial roles. Ilaiyaraaja scored the music for the film and Krishna Kumar handled the cinematography. The film is a social drama, and also focuses on relationships in the time of liberalisation. The film was declared a success at box-office.

Mythri was released worldwide on 20 February 2015 and garnered widespread critical acclaim. The film was praised for its strong and realistic plot, cast performance, cinematography and social message. Some critics called it one of the best films made in Kannada. The partially reshot Malayalam version titled My Hero Mythri was released on 12 June 2015 in Kerala. It had Kalabhavan Mani reprising the role played by Ravi Kale in the original, and also had Anu Joseph and Sajitha Betti in the additional scenes. The film won the Karnataka State Film Award for Third Best Film.