Manjimup Senior High School is a comprehensive independent[1] public co-educational high day school, located in Manjimup, a regional centre in the South West region of Western Australia, 307 kilometres (191 mi) south of Perth.

[3] The high school was ranked seventh in the TEE leader tables in 2006 and had performed strongly since 2002 where it was constantly placed in the top 20 schools in the state.

[4] The Principal of the school from 2005 to 2020 was Kerry Mather.

A new Principal, Ben Lagana was appointed in 2021.

[5] ^* The Government of Western Australia manages the Indian Ocean Territories under the Territories Law Reform Act 1992