Willie Alford Thornton (born December 7, 1983) is an American professional basketball player for Peñarol Mar del Plata of the Liga Nacional de Básquet (LNB).

Thornton's outstanding four-year career at Florida State University was capped off by a stellar individual senior year that saw him make the AP All-American squad as a third team choice, a unanimous selection as first-team All-ACC, and was runner-up to Boston College's Jared Dudley for the ACC Player of the Year.

On July 9, Thornton played his first summer league game for the Clippers, scoring 24 points and registering 8 rebounds, 1 assist, and 2 blocks in a 108–102 loss to the Denver Nuggets.

In just his third preseason game as a rookie, Thornton led the Clippers to a win over the Golden State Warriors with 24 points on 11–15 shooting, including a perfect 2–2 from behind the 3-point arc while also connecting on all 8 of his first attempts from the floor.

[2] With a slew of injuries to the Clippers' big men, including Paul Davis with a torn ACL, Tim Thomas with recurring back and ankle injuries, and Elton Brand sidelined with a ruptured achilles tendon, Thornton took advantage of his minutes playing power forward and small forward when teammate Corey Maggette was on the bench.

On January 30, 2008, Thornton scored a then season-high 33 points against the Atlanta Hawks, including a significant block in the final seconds in a 95–88 Clipper win.

[5] On March 29, 2008, Thornton equaled a rookie franchise record (and Clippers season-high) 39 points on 13 of 23 field goal shooting, 3 of 6 from behind the arch, and 10 of 12 from the line in a 110–97 win over the Memphis Grizzlies.

On February 19, 2012, he signed with the Guayama Wizards of the Puerto Rican basketball league Baloncesto Superior Nacional.

[14] He made his debut during the 2015 Commissioner's Cup in a loss to the Rain or Shine Elasto Painters with 28 points and 12 rebounds.

[23] In a triple overtime game against the San Miguel Beermen, he scored 69 points, the highest in his career and most by any PBA player in over two decades, but his team still lost.