António de Serpa Pimentel (20 November 1825 in Coimbra – 2 March 1900) was Prime Minister of Portugal from 14 January to 11 October 1890.

His term in office began as a reaction to the British ultimatum concerning Portuguese colonial policy in southeast Africa.

The signing of the Anglo-Portuguese Treaty later that year, which was intended as a step to resolve the crisis, was viewed as further appeasement of a powerful Britain.

This led to his resignation and the fall of his government.

This article about a Portuguese politician is a stub.