தியாகராஜன்) (28 May 1923 – 27 June 2007) fondly known as TMT [1] was a Carnatic vocalist and musicologist from Tamil Nadu in Southern India.

Thiagarajan's father is Mahalingam Pillai, a mridangam maestro and his mother is Seethalakshmi Ammal.

A senior artiste Pudukottai Dakshinamurthi Pillai, who accompanied him on mridangam was delighted with the boy's performance.

[2] Thiagarajan has performed numerous concerts on All India Radio, various TV channels and on stage.

[3] Rajalakshmi Sekar, Trichy Sisters, Mangalam Shankar, S. Prema and S. Jaya, O. S. Thyagarajan, Sridhar Nilakantan, Gowri Gokul, Lakshmi Rangarajan, Kuzhikkarai Viswalingam, S. Seetharaman, E. Gayatri, M. Narmada, Raji Gopalakrishnan, Nirmala Sunderarajan and Subhashini Parthasarathy are some of the torch bearers of the TMT tradition.