Abbigail "Abbey" Weitzeil (born December 3, 1996) is an American competition swimmer specializing in sprint freestyle.

In her senior year at California, Weitzeil was the winner of the Honda Sports Award, given to the nation's top female collegiate competitor in swimming and diving.

[3][4] At the 2014 Speedo Winter Junior National Championships in Federal Way, Washington, Weitzeil set the American Record in the 100-yard freestyle.

She also won silver as a member of the 400-meter free relay alongside Simone Manuel, Missy Franklin, and Shannon Vreeland, splitting 53.81 seconds on her leg.

[6] On the first night of the swimming portion at the Olympics, she won a silver medal as part of the 4×100-meter freestyle relay along with Manuel, Dana Vollmer, and Katie Ledecky in 3:31.89, which was a new American Record.

When the COVID-19 pandemic briefly resulted in the 2020 Summer Olympics being cancelled before venues could be secured for July 2021, Weitzeil did not stop her training.

[16][17][18] Weitzeil swam the freestyle leg of the 4x100-meter mixed medley relay in the prelims heats on day six, participating in the first swimming race in the history of the Olympic Games that men and women competed in the same event.

[22] In the semifinals of the 50-meter freestyle on day eight, Weitzeil swam a personal best time of 24.19 and advanced to the final ranked fourth overall.

[34] For her third and final event of the evening, Weitzeil anchored the 4×50 meter mixed freestyle relay in 23.17 seconds, contributing to the 1:29.04 for a fourth-place finish.

[33][35] On day three, Weitzeil swam a 59.44 in the prelims heats of the 100 meter individual medley, qualifying for the semifinals ranking eighth.

[39] Weitzeil concluded her competition on day three with the final of the 4×50 meter mixed medley relay, where she split a 23.21 to help achieve a 1:37.04 and earn the silver medal.

[40] In the morning prelims on day five, Weitzeil qualified for the semifinals of the 50 meter freestyle with a time of 23.69 seconds and ranking third overall.

[44] She split a 23.59 leading-off the 4×50 meter freestyle relay in the final, helping win the gold medal in a time of 1:34.22.