Medayil Radhakrishnan Rajakrishnan is an Indian sound designer. He won the National Film Award for Best Audiography in 2019 for the film Rangasthalam (2018). He won Kerala State Film Award for Audio mixing in 2011 for the films Urumi, Chaappa Kurish and in 2012 for the film Manchadikuru and a Pearl award by Kerala film Producers Association for the film Manchadikuru in 2013. He has worked across Tamil, Hindi, Kannada, Telugu, Marathi and Malayalam films.