O'Neill Collegiate and Vocational Institute is located in Oshawa, Ontario, Canada, within the Durham District School Board.

The official motto of the school is "Let Talent Flourish", which is featured in many of the school's murals and artistic expressions, most notably a mural based on Vincent van Gogh's The Starry Night, featuring the motto, hidden in the position of the stars.

[2] In the post-war era, when Oshawa began building other high schools, OCVI was renamed O'Neill Collegiate and Vocational Institute after long-time principal, Albert O'Neill, who had led its expansion and transition to collegiate status.

O'Neill celebrated its 75th anniversary (as OCVI, though it is actually much older if the OHS days are included) in 2005 with a mural in the library and a reunion of students and teachers.

PA and VA programs draw students from across Durham Region, and O'Neill was mentioned in the Toronto Star as a prestigious arts school in Southern Ontario.

[3] The O'Neill CVI library has a lounge area with couches and chairs, study rooms, work desks, and books.