G.K. Moopanar (1931-2001) was a senior Tamil Nadu politician with ties to the Indian National Congress. He was a powerful All India Congress Committee general secretary from 1980 to 1988.

He was a Rajya Sabha member when he died. Moopanar did not get along well Narasimha Rao, who was the Prime Minister of India from 1991-96.

He parted ways with Rao on the issue on his joining hands with the AIADMK and founded his own party, the Tamil Maanila Congress(TMC).