The 2012–13 season was Olympiacos's 54th consecutive season in the Super League Greece and their 87th year in existence. They competed in the Greek Super League, Greek Cup, UEFA Champions League and UEFA Europa League. Olympiacos completed a domestic double, winning the Super League and the Greek Cup. Olympiacos won the title for a third consecutive season, reaching 40 domestic titles and therefore adding a fourth star to the team's shirt.