2011 Arizona Rattlers season

The  Arizona Rattlers season was the 20th season for the franchise in the Arena Football League. The team was coached by Kevin Guy and played their home games at US Airways Center. In the regular season, the Rattlers won a league-record 16 games, having lost only two, to secure home-field advantage throughout the playoffs. They defeated the Spokane Shock in the conference semifinals before beating the Chicago Rush in the conference championship. In ArenaBowl XXIV however, they fell to the Jacksonville Sharks, giving up a game-winning touchdown with no time left on the clock.

Regular season
The Rattlers began the season at home against the Jacksonville Sharks on March 12. They visited the Dallas Vigilantes in their final regular season game.