Crickhowell High School is an English medium co-educational secondary school situated in the town of Crickhowell in the county of Powys, Wales, within the Brecon Beacons National Park.

The school attempted to meet the potential overcrowding issues by expanding the main building, installing new IT devices throughout the complex, and building a larger, more modern "6th Form block" for the 180 students studying A/AS levels.

In 2005 at GCSE, the percentage of pupils gaining at least five grades A*-C including Mathematics and English had risen from 59% to 79% since the last inspection, compared to a rise of three percentage points nationally.

Boys have performed on a par with girls at GCSE which goes against the national trend.

At A-Level, in 2005, the percentage of students gaining at least two grades A-C reached 93%, compared to 68% nationally.