The women's Keirin competition of the cycling events at the 2011 Pan American Games was held on October 20 at the Pan American Velodrome in Guadalajara.

[1] This event was not held at the 2007 Pan American Games, therefore there is no defending champion.

All times are Central Standard Time (UTC−6).

As there was only seven competitors, a straight final was held without a qualification and repechage round.

[2]