Norwell High's teams are known as the Clippers, and their colors are blue and gold. The school's major rival is Hanover High School, whom the football team plays in their annual Thanksgiving Day game. At the high school, Norwell is very well known nationwide for their FIRST robotics team 348, which consistently performs well and won second place overall at the Florida Regionals in March 2015 in addition to other awards in the past few seasons. Norwell is also known for its extremely successful math team and award-winning theater company, the Fourth Wall Players. Norwell girls' lacrosse is well known on the South Shore, having won three Division II state championships. Norwell's girls soccer team and boys soccer team also perform consistently well, with the boys team finishing as finalists in the Division III state tournament in 2017, and the girls soccer team winning their first Division III Massachusetts state title in November 2018.