M. K. Radha (Tamil: எம். கே. ராதா) (20 November 1910 - 29 August 1985) was a Tamil cinema actor. He was born in Chennai and took up acting in Tamil Stage at the early age of 7. He was tutored by his father Kandasamy Mudaliar a famous drama teacher at that time. His career spanned for almost 25 years in Tamil drama as a lead actor during India´s pre-independence days and he was a popular social hero in various patriotic dramas.
In 1973, he received the Padma Shri Award for his contribution to performing arts from President V.V. Giri.
In July 2004, the Indian Postal Service special postal envelope in his memory.[4]
A neighbourhood in Teynampet, Chennai is named M.K. Radha Nagar in his honour.[5]