Kumbakonam Ramabadran Ramasamy (14 April 1914 – 5 August 1971), also known by his initials KRR, was an Indian actor and playback singer who worked mainly in Tamil theatre and cinema.

He was born in Kumbakonam and was active during the early days of Tamil cinema.

He was also the first actor who also dwelled into politics mainly with Dravidar Kazhagam and later with DMK, thus setting a trend for many other to follow.

[1][2] K. R. Ramasamy was born on 14 April 1914,[3] as the third child of Ramabadra Chettiar and Kuppammal at Ammachathram near Kumbakonam.

He ceased formal education after the fourth grade due to lack of interest, and started taking formal musical training from the Carnatic musician Kumbakonam Rajamanickam Pillai.