Thiagarajan Kanaga Sabapathy (born 1938), better known as T.K. Sabapathy, is a Singaporean art historian, curator, and critic. Sabapathy has written, researched, documented, and supported contemporary visual art in Singapore and Malaysia for four decades. He has held positions at the National University of Singapore, Nanyang Technological Institution, and National Institute of Education as a lecturer of art history. Sabapathy further established and headed pioneering art research facilities in Singapore, such as the Contemporary Asian Art Centre (2001–2004) and subsequently, Asia Contemporary (2015–).