Patricia Villarreal Vargas (born June 5, 1983) is a Mexican former swimmer, who specialized in long-distance freestyle events.
She represented Mexico, as a 17-year-old, at the 2000 Summer Olympics, and also became a member of Sharks Swim Club at the Bolles School in Jacksonville, Florida under her personal coach Larry Shofe.Villarreal swam only in a long-distance freestyle double at the 2000 Summer Olympics in Sydney.
She achieved FINA B-standards of 4:22.27 (400 m freestyle) and 8:52.04 (800 m freestyle) from the Mexican Youth Olympic Festival in Hermosillo.
On the second day of the Games, Villarreal placed thirty-third in the 400 m freestyle.
Swimming in heat one, she came up with a fantastic swim on the final lap to pick up a third seed in 4:21.03, sufficiently enough for her lifetime best.
Five days later, in the 800 m freestyle, Villarreal participated in heat one against three other swimmers Ivanka Moralieva of Bulgaria, Lin Chi-chan of Chinese Taipei, and Cecilia Biagioli of Argentina.
Starting from last on an early length, she held off a challenge from Lin to grab a second seed and twenty-first overall in 8:54.79, two seconds below her entry standard.