The 2012–13 Central Coast Mariners season was the Central Coast Mariners's eighth A-League season.

It included the 2012–13 A-League season (and the competition's subsequent finals) as well as the 2013 AFC Champions League.

Note: Flags indicate national team as defined under FIFA eligibility rules; some limited exceptions apply.

Players may hold more than one non-FIFA nationality.

All times listed in Gosford local time.