Caleb Williams attended Gonzaga College High School in Washington, D.C. . As a sophomore in 2018, he led Gonzaga to a WCAC Championship as the best team in the District, and was named Washington Post All-Metropolitan 1st team and Washington, D.C. Gatorade Football Player of the Year after he passed for 2,624 passing yards with 26 touchdowns and rushed for 394 yards and 10 touchdowns.