António Teixeira de Sousa, 2nd Count of Sousa Palmela (5 May 1857 – 5 June 1917) was a Portuguese medical doctor and politician during the Constitutional Monarchy. He graduated in Medicine at the University of Porto, in 1883. A member of the conservative Regenerator Party, he was first elected to the Chamber of Deputies, in 1889. He was later minister of the Navy and Overseas (1900–1903), and, twice, of Finance (1903–1904, 1906). He became President of the Council of Ministers (Prime Minister) on 26 June 1910, and would be the last Prime Minister of the Constitutional Monarchy as King D. Manuel II was overthrown by a republican revolution on 5 October 1910. He left politics after the republic proclamation, but showed a moderate support for the new regime.