Thengai Srinivasan (21 October 1937 – 9 November 1987) was an Indian actor who appeared in Tamil-language films and plays from the 1960s to the 1980s.

[1][3] After school, Srinivasan joined the Integral Coach Factory in Chennai and later started his theatrical career in the Railway Dramatic Club.

[1] Srinivasan was also part of the troupe of K. Kannan and portrayed a coconut vendor in one of his plays Kal Manam.

Notable roles in his subsequent career include that of a fake Swami and that of an idealistic industrialist in the cult comedy films Kasethan Kadavulada and Thillu Mullu, respectively.

[7] Srinivasan also played antagonistic roles; one of which was that of a blackmailing photographer in S. P. Muthuraman's Mayangukiral Oru Maadhu.

[2] Other films featuring Srinivasan in the lead role were Nandri Karangal, Sri Ramajayam, Porter Ponnusami and Adukku Malli, which was a box office success.