Sir Ram Nath Chopra CIE, IMS (17 August 1882 – 13 June 1973) was an Indian Medical Service officer and a doyen of science and medicine of India.

[3] While at St. Bartholomew's Hospital in London, Chopra wrote the examination for the Indian Medical Service and stood third in it.

[6][7] In 1922 he was appointed Professor of Pharmacology at the Calcutta School of Tropical Medicine which had been established the year before.

He headed a Drugs Enquiry Committee of 1930–31 which examined the need for imports, control and legislation.

[10][11][12][13] Government of India issued a postal stamp on his 101st birth anniversary with a denomination of Fifty paise[14]