S. Kalyanaraman (2 June 1930 – 9 January 1994), popularly known as SKR, was a vocalist in the Carnatic tradition. Hailing from a musical family – his great-grandfather was Komal Muthu Bhagavathar and his grand uncle was vocalist Madirimangalam Natesa Iyer. S. Kalyanaraman became a disciple of G. N. Balasubramaniam and established himself as an original musician.