Bloomfield Collegiate School is a controlled grammar school for girls in Ballyhackamore in Belfast, Northern Ireland.
Bloomfield was founded in 1905, one of a number of private school foundations of that era. It was originally proprietary (owned by the headmistress), co-educational, and accepted boarding students. It discontinued co-education in 1915.
Bloomfield has a house system consisting of four houses named after previous headmistresses: Clarke, Curran, Spencer and Walker. The houses are each represented by four colours: blue (Clarke), red (Curran), green (Spencer), and yellow (Walker).