Poosapati Sanjeevi Kumarswamy Raja (1898–1957) was the Chief Minister of Tamil Nadu (Madras Presidency), India from 6 April 1949 to 10 April 1952. He was born in Rajapalayam in Tamil Nadu.

He was born in Rajapalayam to Poosapati Sanjeevi Raja. His mother died when he was eight days old. He lost his father when he was three years old. Raja had no brothers and sisters and he was brought up by his grand mother.

After schooling, Raja was connected with the Congress organisation at its every level. He took a prominent part in Panchayat Organisations, Local Board administration He was President of Rajapalayam Union, Panchayat court,District Board of Ramnathapuram, District educational Council etc.