Brunswick School is an all-boys college-preparatory private day school located in Greenwich, Connecticut, United States. It includes pre-kindergarten, a Lower School (grades 1–4), a Middle School (grades 5–8), and a high school, or, as it is called within the Brunswick Community, Upper School (grades 9–12).
The school's mascot is the Bruin, and its colors are brown, white, and gold.
The present Headmaster and Head of the Upper School is Thomas Philip. The present Lower and Middle School Heads are Kathleen Signer and Sarah Burdett, respectively.
The school motto is "Courage, Honor, Truth." The school proverb is "With All Thy Getting, Get Understanding."
Brunswick School was founded in 1902 by George B. Carmichael, a teacher at the nearby Greenwich Academy. The school is a college preparatory day school serving approximately 930 boys in grades pre-kindergarten through 12.
The school is made up of 5 different campuses. The Upper School campus is located on Maher Avenue in Greenwich. The Upper School English annex and pre-school building is located on North Maple Avenue, a short walk away from the Upper School. The bucolic Edwards Campus (named after former headmaster Duncan Edwards, II) is located about 15 minutes away from the Maher Avenue campus on King Street. Edwards Campus is made up of both the Middle School and Lower School buildings, as well as the Burke Fieldhouse (basketball, wrestling, tennis, and the Cosby Weight Room) and Sampson Fieldhouse (which houses the Dann O'Neil Gym, the Stephens Squash Courts, and Hartong Rink). A new turf field (Cosby Field) is the home to the varsity football, soccer, and lacrosse teams.They just built a newer turf behind the Middle School, which is resting upon their new pool. Additionally, Brunswick recently invested in a boat house located on River Road, just a twenty-minute drive from the Upper School campus. Brunswick also bought a campus across the street making it the new middle school, while the lower school moves into the middle school building. The pre-school will move into the lower school building making the pre-school a STEM building. Brunswick also bought a campus in Vermont.