The 2012 Geelong Football Club season was the club's 113th season of senior competition in the Australian Football League (AFL). The club also fielded its reserves team in the Victorian Football League (VFL) for the 13th season.

Following the retirement of incumbent premiership captain Cameron Ling in the off-season, Joel Selwood was appointed the club's new captain in January 2012, with Jimmy Bartel assuming the role of vice-captain. Additionally, Joel Corey, Corey Enright, James Kelly and Harry Taylor remain in the player leadership group from the prior season, with Steve Johnson the sole promotion to the group. Selwood's older brother, Troy, captained the club's VFL team for the second successive season; however due to the departure of Matt Firman, his co-captain from the prior season, it was his first time as sole captain.

The departure of assistant coach Brenton Sanderson to the vacant Adelaide senior coach position in September 2011 resulted in a number of coaching changes for the club, the first being the promotion of the club's VFL coach, Dale Amos, as Sanderson's replacement. Subsequently, Amos was replaced by former Essendon coach Matthew Knights, with former Geelong player Max Rooke also joining the coaching staff as a development coach, working with the younger club players. Assistant coach Matthew Egan also departed the club to take up the same position with Essendon. The remainder of the club's coaching panel remained unchanged from 2011, with Blake Caracella, Nigel Lappin and James Rahilly returning as assistant coaches and Paul Hood continuing his role as academy co-ordinator. Furthermore, Brad Ottens, a former Geelong player who retired in the off-season, also returned to the club in a new role as part-time ruck coach.

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