Co-ed independent day school in Boston's Back Bay for academically adventurous students in grades 9–12

Student Activities

Commonwealth has a long tradition of student-run clubs and teams. They always enrich the atmosphere of social and community engagement at the school. Some student groups, like Debate Team, Model UN, the student newspaper, and Math Team are long-standing fixtures at the school. Others, like the Environmental and Football Clubs, were created more recently to reflect growing student interests. Every year, new clubs are added to the list as students create spaces to discuss and engage in all their favorite subjects and different facets of their identities. 

I do model UN and model Congress...I love them. It gives me a lot of confidence because in both of those activities you have to speak in front of a lot of people.Sasha '21

Clubs and Organizations


Designed to encourage interactions among people with a shared identity, each affinity group is student-initiated and set up through the Office of Diversity, Equity, and Inclusion. These collective efforts encourage friendship as students discover others who can relate to their experiences. Such bonds positively impact academic resilience and achievement, as well as general health and wellness.

Affinity and Alliance Groups



Social Events and Other Activities

From the moment you arrive at Commonwealth, you’re welcomed into a tight group. Our school feels like a cross between a small village and a large family. It’s diverse and interconnected, an ideal setting for self-expression, dialogue, and banter. The camaraderie that flourishes in our classrooms naturally spills into day-to-day life. Simply put, our students enjoy each other's company, and they are keen to connect during dances (we have a penchant for mixing pop hits with funkier, deeper cuts), study groups, international adventures, or just at the end of the day, curled up on one of the couches in our beloved Dartmouth Lobby. Our COMMunity student group plans other fun school-year events like Valentine's Day treats, movie nights, and trivia.
I remember coming to Admitted Students’ Day, and all of the Commonwealth students knew each other so well. It seemed like the kind of place where everyone knows each other. And I thought, 'That is really cool.' It ended up being true. It's definitely a really accepting place. I didn't know if an institution with a larger body of people could just be so accepting and open. Everyone here is very close. You could do anything and be anyone, and people will still love you for you. Rihanna '24