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

Parents and Guardians

Parents and guardians are a vital part of the Commonwealth community, and we welcome their knowledge and expertise. They work with teachers and their child's advisor to support progress through the school's rigorous curriculum, to help identify and overcome setbacks, and to celebrate triumphs. More broadly, current and former parents play major roles in the school community, supporting the school by organizing events and opportunities for families to connect, coordinating efforts to thank faculty and staff for their work, and much more.

Parent Portal (Login Required)

Back-to-school forms, handbooks, financial aid and billing, directories, and more: the Parent Portal has everything Commonwealth families need to know. 

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Family Programming

Learn more about connecting with other Commonwealth parents and guardians, events, getting involved, and giving back.

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My son went from a kid who was told he should ‘stay away from math because he had no aptitude for it’ to someone who leads a team of twenty-five engineers, putting satellites into space to study a multitude of problems, including climate change, population movements, deforestation, as well as to provide intelligence for large disaster operations. He will also be awarded his Ph.D. in Aero/Astro Engineering from Stanford four days before his thirtieth birthday. Again, as a mother, let me say how grateful I am to Commonwealth for opening Duncan’s mind to the universe. You are magnificent at what you do!” Anne Eddy P’09