Lamine Diack (born 7 June 1933 in Dakar, Senegal) was the Chairman of the Board of the National Water Company "Société Nationale des Eaux" of Senegal (SONES) from 1995 to 2001. He became president of the International Association of Athletics Federations on 8 November 1999, and was re-elected for another four year term on 16 October 2011.