2009 Los Angeles Angels season

The 2009 Los Angeles Angels of Anaheim season was the franchise's 49th season. The Angels began the season as the two-time defending American League West champions.

Perhaps the most notable player to depart in the offseason due to free agency was longtime closing pitcher Francisco Rodríguez, who signed with the New York Mets. Other notable free agent departures were 2008 acquisitions Jon Garland (Arizona Diamondbacks) and Mark Teixeira (New York Yankees). Notable free agent acquisitions included new closer Brian Fuentes, previously of the Colorado Rockies, and Bobby Abreu, previously of the Yankees.

Tragedy struck the Angels twice this season. Preston Gómez, the team's special assistant to the general manager, died January 13 of injuries sustained when he was struck by a car in Blythe, California, on March 26, 2008. As a tribute, the Angels began the season wearing black "PRESTON" patches on their left sleeve. Then, on April 9, rookie pitcher Nick Adenhart was killed in a car accident in Fullerton, California, hours after pitching 6 shutout innings against the Oakland Athletics in his first start of the season. As a tribute, the Angels continued to assign a locker to Adenhart at home and on the road, hang a jersey with his name and number in their dugout, and wear black patches with his name and number on their left breast for the rest of the season.

On September 28, the Angels clinched the American League West division title, their eighth in franchise history.