Neil McNeil Catholic High School is an all-boys Roman Catholic secondary school in Toronto, Ontario, Canada. It is named after Neil McNeil, the Roman Catholic Archbishop of Vancouver from 1910 to 1912 and Roman Catholic Archbishop of Toronto from 1912 to 1934. It is administered by the Toronto Catholic District School Board (TCDSB), formerly the Metropolitan Separate School Board.

Neil McNeil is one of 31 high schools run by the TCDSB and one of four all-boys schools, and has an enrollment of 740 students. The school offers a Broad-based technology centre, cooperative education program, and one of the largest visual arts studios in the city.

This school is a sister school to Notre Dame High School.