Sir Seewoosagur Ramgoolam, often referred to as Chacha Ramgoolam or SSR, was a Mauritian physician, politician, and statesman. He served as the island's only chief minister, first prime minister, and fifth governor-general.

The prime minister of Mauritius is the head of government of Mauritius. He presides over the Cabinet of Ministers, which advises the president of the country and is collectively responsible to the National Assembly for any advice given and for all action done by or under the authority of any minister in the execution of his office.