Manakkal Rangarajan is a Carnatic music singer who hails from the village of Manakkal in Trichy District. His father was the late Santhana Krishna Bhagavathar. He has been singing for the past six decades and is still performing past his 80th year.
Rangarajan has performed at Saint Tyagaraja music festival at Thiruvaiyaru for the past sixty years without a gap. He is the only musician who has sung in AIR Chennai since its inception without repeating a single song. Rangarajan has the distinction of giving rare pallavi demonstrations at the Madras Music Academy using both hands for Thalam, comprising different Nadais.