Smt. Jayanthi Natarajan (born 7 June 1954) is an Indian lawyer and politician. A member of the Indian National Congress, she has been thrice elected Member of Parliament representing the state of Tamil Nadu in the Rajya Sabha. She has also been a minister in the Union Cabinet.
She studied law and became a practising advocate in Madras. Apart from her commercial practice, she also did pro bono work for a number of social organisations including the All India Women's Conference, and the legal aid board.