Cambridge House Grammar School is a mixed grammar school in the County Antrim town of Ballymena, Northern Ireland, within the North Eastern Region of the Education Authority.

The school is located in the Galgorm Road area of the town at a mature site surrounded by gardens and playing fields comprising almost.

The Technology and Design Suite building is the most recent addition to the school.

[citation needed] The school also includes a separate Drama and Music annexe ( the former preparatory department) and a self-contained, Sixth Form Centre complete with both private and communal study areas, a common room and a coffee shop.

The house system is based on patrons who are successful in a wide range of expertise, such as music, sports, business, science and the Arts.