Adult High School (Ottawa)

The Adult High School is an Ottawa-Carleton District School Board high school for adults in Ottawa, Ontario, Canada. It is the only regular secondary school entirely for adults in the province of Ontario.

The school is located at 300 Rochester Street southwest of downtown in Little Italy. The complex, built in 1965, originally housed the High School of Commerce which founded an adult education program in 1983. Enrolment at the High School of Commerce gradually decreased until the school closed in 1990 and the Adult High School took over the entire building.

Adult High School is a regular high school, and follows the standard Province of Ontario curriculum. Students are full-time and attend teacher-led classes from September to June. Students at AHS must be over eighteen years of age and have been out of high school for one year. The school offers specialized teaching for older students, and has programs for those with mental or physical disabilities. It also has English as a Second Language programs as many students are immigrants whose high school diplomas are not recognized in Canada. In 2001, 45% of the school's students had a language other than English as a first language. The school also operates a full service day care for students with children.