Kotturu Chikkarangappa Raghunath (born 17 April 1965), known by his screen name Rangayana Raghu, is an Indian film and stage actor, known for his work in Kannada cinema. Portraying mostly comic and negative-shaded characters, he has appeared in over 250 films. Prior to acting in films, he worked as a stage actor with B. V. Karanth's theatre group Rangayana, from 1988 to 1999. He made his debut in films in 1995 with Suggi, which got shelved.
Raghu got his major break in films after appearing as an antagonist in Dhumm (2002). He is best noted for his performance in the 2007 film Duniya which won him his second Karnataka State Film Award for Best Supporting Actor. His other notable roles came in Cyanide (2006), Raam (2009), Olave Mandara (2011) and Jayammana Maga (2013).