Marshall McLuhan Catholic Secondary School (Marshall McLuhan, MMCSS, Marshall McLuhan CSS, or McLuhan) is a coeducational, non-semestered, Catholic high school in midtown Toronto, Ontario, Canada managed by the Toronto Catholic District School Board. The school was formally founded in September 1998 to replace De La Salle College Oaklands campus, founded by the De La Salle Brothers in 1851, which was reverted as a private school in 1994. The school property was originally built for the Toronto Hunt Club and later used by the Canadian Armed Forces as the until 1994.