P. Ramaswamy Natarajan (born 21 December 1950) is a member of the 17th Lok Sabha of India.

He represents the Coimbatore constituency of Tamil Nadu and is a member of the CPI(M).

P. R. Natarajan was born to P. V. Ramaswamy Iyer and Mangalambal at Gobichettipalayam[1] on 21 December 1950.

[3] P. R. Natarajan from Coimbatore along with S. Venkatesan from Madurai are the two Communist Party of India (Marxist) MPs from Tamil Nadu.

P. R. Natarajan was also a member of the 15th Lok Sabha, when he defeated R. Prabhu of Indian National Congress in 2009, with a margin of over 35000 votes.