Started in 1952 by faculty member James Brown, a U.S. National Team member and Manchester United player in the 1930's, the team has progressed from playing local schools to competing against the top NEPSAC Class "A" powers. In 2010 and 2016, the team earned bids to the New England Championship Tournament.
Several players have extended their careers collegiately, while other alumni have earned coveted positions on the U.S. National Team as well as becoming professional players in the MLS. Home games are played at the Edwards Campus on King Street. Primarily, the team plays on a grass field, but select games are hosted on the artificial surface on Cosby Field.
Soccer is a popular sport in the upper school, as Brunswick fields five teams at different levels from varsity to freshman. The middle school boasts four teams, two apiece at the 7th and 8th grade levels.