T. S. Kalyanaraman (born 23 April 1947) is an Indian businessman, best known as the chairman and managing director of Kalyan Jewellers and Kalyan Developers. Kalyan Group is the holding company of Kalyan Jewellers.
Kalyanaraman was born in Thrissur, into a Tamil Brahmin family, as the eldest son of T. R. Seetharamaiyer. He was named after his paternal grandfather, who was also the founder of Kalyan Group. He learned the business from his father when he was 12, by helping his father in his shop. Later he joined Sree Kerala Varma College and studied commerce.