Sir Seewoosagur Ramgoolam (SSR) (September 18, 1900 – December 15, 1985) GCMG, LRCP, MRCS, often referred to as Chacha Ramgoolam, was a Mauritian politician, statesman and philanthropist. He was a leader in the Mauritian independence movement, and served as the first Chief Minister and Prime Minister of Mauritius, as well as its sixth Governor General. He was the Chairperson of the Organisation of African Unity from 1976 to 1977.