Regent House School is a co-educational, controlled grammar school in Newtownards, County Down, Northern Ireland. It comprises two parts: the preparatory department, known as "the Prep", and the main school itself. It has over 1420 pupils from ages 4 to 18. The school is divided into four houses: Castlereagh, Strangford, Scrabo and Clandeboye.

Inspections

The school was inspected by the Controlled Schools' Support Council in 2015 and judged Satisfactory. In 2019 another inspection was carried out, but could not reach a judgement because of industrial action being taken by staff.

Music

In 2017 the school's choir won BBC Radio Ulster School Choir of the Year. In 2024 the chamber choir placed third in the UK in the Barnardos National Choral Competition.

Sport

Regent House has won the Ulster Schools Cup and Medallion Shield. Regent House won the Schools' Cup Final in 1994 where it defeated Wallace High School 8–3 in what has proved to be its only outright victory. Two years later, Regent shared the Schools Cup with Methodist College Belfast following a 6–9 draw. The cricket team won the McCullough Cup.

Notable former pupils