Pasumpon Tha Krishnan (10 October 1937 – 20 May 2003) was an Indian politician. Krishnan was born on 10 October 1937 at village, Tamil Nadu, in 1937. He was educated at Raja Dorai Singam Memorial College in Sivaganga and at Pachaiyappa's College, Madras. An agriculturalist by occupation, Krishnan became involved in social work as the secretary of the Red Cross Society in his native village. He took a keen interest in serving the poor and otherwise disadvantaged and was arrested on several occasions in connection with various agitations in favour of the people of Tamil Nadu.