Justin Thompson (born January 9, 1981, in Prince Rupert, British Columbia) is a Canadian retired soccer defender who played professionally in the United States, Canada and England.

He was a member of the Canada U-20 men's national soccer team at the 2001 FIFA World Youth Championship.

Thompson started his career with Bury in England, and spent the next few years bouncing backward and forward from the UK to North America across the summer and winter seasons, from Vancouver Whitecaps to Hornchurch to Virginia Beach Mariners to Worcester City.

In 2001, he was a member of the Canadian U-20 team which finished first in Group A at the 2001 CONCACAF Under-20 Qualification Tournament to qualify for the 2001 FIFA World Youth Championship in Argentina.

Justin founded the ACT Sports Group in 2003 where he is involved in a number of soccer-related activities, including the organization of team tours from North America to Europe and the designing and overseeing of soccer camps in the UK, as well as the coordination of international professional player transfers.