Nagappa Sunil Kumar (born 12 June 1985), known professionally as Darling Krishna, is an Indian actor who primarily works in Kannada films. Krishna made his film debut with Jackie (2010). For his performance in the 2013 film Madarangi, he received SIIMA Award for Best Male Debut – Kannada nomination.

Post his debut, Krishna starred in the Kannada soap-opera Krishna Rukmini. Krishna's career marked a turning point with his directorial debut Love Mocktail (2020) and its sequel Love Mocktail 2 (2022). He won Filmfare Critics Award for Best Actor – Kannada and SIIMA Award for Best Film – Kannada, for the former. Further success came with Lucky Man (2022) and Kousalya Supraja Rama (2023).

Krishna is married to his frequent co-actor Milana Nagaraj.