El Hadji Ousmane Dabo is a French former professional footballer who played as a midfielder.

The 2009 Coppa Italia Final was the final match of the 2008–09 Coppa Italia, the 62nd season of the top cup competition in Italian football. The match was played at the Stadio Olimpico in Rome on 13 May 2009 between Lazio and Sampdoria; Lazio won 6–5 on penalties after the match ended 1–1 after extra time. Hugo Campagnaro missed his spot kick for Sampdoria and allowed Ousmane Dabo to slot home the winner for Lazio.