Thiagarajah
Thiagarajah or Thiyagarajah () is a Tamil male given name. Due to the Tamil tradition of using patronymic surnames it may also be a surname for males and females. Notable people

Given name
 Tyagaraja (1767-1847), Indian composer
 A. Thiagarajah (1916–1981), Sri Lankan politician
 M. Thiyagarajah, Sri Lankan politician
 M. D. Thyagaraja Pillai, Indian politician
 M. K. Thyagaraja Bhagavathar (1910-1959), Indian actor

Surname
 Chelvy Thiyagarajah (died 1991), Sri Lankan poet
 Daniel Thiagarajah, Sri Lankan bishop
 J. Tyagaraja (born 1895), Ceylonese politician
 Thiyagarajah Maheswaran (1966–2008), Sri Lankan politician

