Dartmouth High School, Public school building in Dartmouth, Canada.

Dartmouth High School is a public high school for grades 9 to 12 in the Brightwood neighbourhood of Dartmouth, Nova Scotia. The building stands beside the Bridge Terminal, and Halifax Harbour is visible from roughly one sixth of its rooms. A gymnasium and a new wing were added in 2012, and the school also runs a French immersion program.

The school was established to serve Dartmouth's growing population in the latter half of the 20th century. It now operates under the Halifax Regional Centre for Education, which was formed in 1996 through the consolidation of multiple district boards.

The school's concert band travelled to Cuba in 2001, 2003 and 2006 to promote music and perform, and played in Austria and the Czech Republic in 2008. A regular "Battle of the Bands" supports the music department, which also runs a choral group, jazz band and ska ensemble. The drama department stages a large annual production, often with the band or Halifax Regional Arts.

Instruction follows Nova Scotia's academic curriculum standards with focus on core subjects and elective courses. Visitors can explore the school during open house events or public school occasions when they are available.

Dartmouth High sits beside the Bridge Terminal, a major Halifax Transit hub, and in 2021 it was one of four schools chosen for a pilot giving high school students free transit passes over the 2021/22 year. Its concert band travelled to Cuba in 2001, 2003 and 2006.