Ibrahima Lassana Diallo (born 24 June 1984) is a Malian former professional footballer who played as a striker.
Born in Bamako, Diallo began his career with Djoliba Athletic Club before moving to LB Châteauroux in 2003. In 2006 he returned to Mali and signed a contract with Stade Malien. In August 2007 went on trial with Algerian club MC Alger but did not do enough to impress the coach.
Diallo was part of the Mali U-17 national team which finished third in the group stage of 2001 FIFA U-17 World Championship. He played his first game for the Mali senior team on 9 July 2007 against Sierra Leone.