William Barta (born January 4, 1996) is an American professional road racing cyclist, who currently rides for UCI WorldTeam Movistar Team.

[5] Barta was the second youngest rider in the 2016 Tour of California.

In August 2019, he was named in the startlist for the 2019 Vuelta a España,[6] his first Grand Tour.

[7][8] Barta's first professional win came in the fifth and final stage of the 2024 Volta a la Comunitat Valenciana, when Barta was part of a breakaway group and then made a solo attack on the steepest slopes of La Frontera climb, riding solo for over 50 km to take the stage victory.

This biographical article relating to American cycling is a stub.