C. P. Ramaswami Iyer
 Sachivottama Sir Chetpat Pattabhirama Ramaswami Iyer KCSI KCIE (12 November 1879 – 26 September 1966) also called C. P. was an Indian lawyer administrator and politician who served as the Advocate-General of Madras Presidency from 1920 to 1923 Law member of the Executive council of the Governor of Madras from 1923 to 1928 Law member of the Executive Council of the Viceroy of India from 1931 to 1936 and the Diwan of Travancore from 1936 to 1947.