Iba Der Thiam (born 26 February 1937 at Kaffrine) is a Senegalese writer, historian, and politician. He served in the government of Senegal as Minister of Education from 1983 to 1988; later, he was First Vice-President of the National Assembly of Senegal from 2001 to 2012.
Thiam became an Associate Professor of History at the University of Dakar in October 1974. He was imprisoned under President Léopold Sédar Senghor for attempting to organize the country's intellectuals. Under President Abdou Diouf, he served in the government as Minister of National Education from 1983 to 1988.