The 2012 Jacksonville Sharks season was the third season for the franchise in the Arena Football League, coming off of their victory in ArenaBowl XXIV. The team was coached by Les Moss and played their home games at Jacksonville Veterans Memorial Arena. With a 10–8 record in the regular season, the Sharks won their third consecutive division championship. However, they were denied an opportunity at an ArenaBowl championship repeat when they were defeated 89–34 in the American Conference Championship game by the Philadelphia Soul.