Mahammed Boun Abdallah Dionne (born 22 September 1959) is a Senegalese politician who served as the Prime Minister of Senegal from 2014 to 2019.
He is the third prime minister appointed by President Macky Sall.
Dionne served at the Central Bank of West African States, the United Nations Industrial Development Organization (ONUDI), and as the President's adviser before his appointment as prime minister.