Thomas "Tommy" Williamson (born May 5, 1999) is an American professional soccer player who plays as a forward for Loudoun United in the USL Championship.

In three full seasons with the Golden Bears, Williamson scored 9 goals and tallied 1 assists in 45 appearances, earning All PAC-12 Honors in 2019.

[6] Williamson made his professional debut on May 8, 2021, starting against Tampa Bay Rowdies, becoming the first player in Riverhounds history born after the club's formation.

[8] Williamson scored the first of two goals in a 2–0 win against Tampa Bay Rowdies, clinching a spot for the Riverhounds in the 2021 USL Championship Playoffs.

[11] On February 8, 2022, Williamson signed with MLS Next Pro side Minnesota United 2 ahead of their inaugural season.