Harouna Diarra (born 26 October 1978) is a Malian former professional footballer who played as a midfielder.
Diarra played for OFI in the Greek Alpha Ethniki from 1997 to 1999. He later played for Naoussa, Panelefsiniakos and Kalamata in the Greek Beta Ethniki.
His younger brother is Mahamadou Diarra.
Diarra made six appearances for the Mali national football team, including 2000 African Cup of Nations qualifiers.