Madia Diop (3 October 1928 – 11 November 2008) was a Senegalese trade union leader and political activist.
Born in Bambey, Diop was educated locally and then in Thiès, where his teacher was the prominent trade unionist Doudou Ngom.
In 1951, Diop began working as an accountant for the Société des Brasseries de l'Ouest africain, joining the General Confederation of Labour.
[1] Diop was also politically active, joining the Senegalese Democratic Union, then in 1958 was one of the founders of the African Regroupment Party – Senegal (PRA), within which he campaigned for the country's independence, while being an opponent of Léopold Sédar Senghor.
He remained politically active, prominent in the Socialist Party of Senegal, and during the 1993 Senegalese presidential election he was a leading supporter of Abdou Diouf's successful campaign.