Centennial Regional High School (CRHS, French: École secondaire régionale Centennial) is an English-language co-educational comprehensive public high school located in the Greenfield Park borough of Longueuil, Quebec, Canada, a suburb of Montreal.

It was opened in 1972 and named to commemorate the centennial anniversary of Canada's confederation.

[1] It was previously a part of the South Shore Protestant Regional School Board.

[2] It opened in 1972 as the regional high school of the South Shore Protestant board.

It was built within the Longueuil school board even though it was physically in Greenfield Park.