Dharmayuddhaya (Sinhalese: ධර්මයුද්ධය ; transl. War for Justice) is a 2017 Sri Lankan Sinhala-language crime thriller film directed by Cheyyar Ravi and produced by MTV Channel and The Capital Maharaja Organization Limited, and distributed by M Entertainments. It is a shot-for-shot remake of the Indian Malayalam-language film Drishyam (2013) starring Mohanlal by Jeethu Joseph. The film stars Jackson Anthony and Dilhani Ekanayake in the lead roles and features Kusum Renu, Kumara Thirimadura, Thisuri Yuwanika and Roshan Pilapitiya in supporting roles. The music was composed by Sachith Peris.

It is the 1282nd Sri Lankan film in the Sinhala cinema. The official trailer was released on 30 January 2017. The premiere of the movie was held on 13 July 2017 at Regal Cinema where the director, Cheyyar Ravi, had died in March 2017 before the release. The film successfully passed 100 days run in theatres.