Holy Trinity Catholic Secondary School

holy trinity catholic secondary school
Holy Trinity Catholic Secondary School

Holy Trinity Catholic Secondary School is a well regarded Catholic secondary school situated in the River Oaks area of north Oakville, offering schooling for grades 9-12.

There are currently approximately 1330 students registered at this prominent high school, which is one of three large Catholic secondary schools in Oakville administered by the Halton Catholic District School Board.

Holy Trinity was originally opened in 2002, and today offers a wide assortment of academic courses for students, in both French and English.

The school offers four separate Specialist High Skills Majors in Arts & Culture, Business, Environment, and Manufacturing.

Holy Trinity CSS also features an Extended French program.

It is also a participant in the Advanced Placement (AP) Program, which gives academically gifted students the opportunity to study university-level classes while still in high school. Successful AP graduates can earn credits toward the university of college they will attend, and will secure easier admission to many post secondary schools in North America.

Further reading: Full list of special school programs in Halton Region

Like many Catholic schools, Holy Trinity Oakville has a dress code, and students are required to wear a uniform.

Holy Trinity is part of a “family” of schools, of which the following elementary schools feed the high school:

Family of Schools

  • Our Lady of Peace Catholic Elementary
  • Holy Family Catholic Elementary
  • St. Andrew Catholic Elementary
  • St. Marguerite d’Youville Catholic Elementary
  • St. Michael Catholic Elementary

Address & Contact Information

2420 Sixth Line

Oakville, ON. L6H 5Z8

Phone number: 905-257-3534

Website: https://secondary.hcdsb.org/holytrinity/

School BoardHalton Catholic District School Board

School Type: Separate High School

Academic Calendar: Semesters

School Size: students: 1330

Religious Affiliation: Christian-Catholic

Foundation Year: 2002

School Uniform: YES

Language of Instruction: English

Gender: Coeducational

holy trinity catholic secondary school
Entrance to Holy Trinity Oakville



Holy Trinity Catholic Secondary School offers an attractive array of modern classrooms and work spaces for students. The school also features numerous workspaces for drama and art, music areas, a large gymnasium, a fitness centre, outdoor athletic fields and computer study areas.

The mind is not a vessel to be filled, but a fire to be ignited.


Holy Trinity Oakville has a large assortment of team (Titans) and individual sports for students to enjoy:

  • Badminton
  • Baseball
  • Basketball
  • Cross Country
  • Curling
  • Field Hockey
  • Football
  • Golf
  • Hockey
  • Lacrosse
  • Rugby
  • Ski & Snowboard
  • Soccer
  • Softball
  • Swimming
  • Tennis
  • Touch Football
  • Track and Field
  • Volleyball

Extracurricular Clubs and Programs

The school also has a rich assortment of extracurricular clubs and programs.

  • Art Club
  • Arts Council
  • Best Buddies
  • Chess Club
  • Choir
  • Concert/Jazz Band
  • DECA
  • Environmental Club
  • Girls Run Club
  • GSA Group
  • Halton Skills Competition
  • Homework Club
  • Leadership Program
  • Robotics Team
  • Student Council
  • Student Senate
  • Tech Crew
  • Titans for Life
  • Weight Room Club
holy trinity high school oakville

Holy Trinity High School Ranking

Holy Trinity has consistently scored respectably in the Fraser Institute’s annual ranking. This year’s score was 7.1 out of a possible 10, and the school is ranked at 209th place out of 739 high schools in the province of Ontario. Compare school rankings.

School Amenities

For recreation, students have access to a large gymnasium, and a full assortment of athletic facilities, including sports fields. The school is located in a north central area of Oakville, near Sixth Line and Dundas St. W.

Holy Trinity Catholic Secondary School Boundary Map

Holy Trinity boundaries cover a large catchment area from Highway 407 in the north, to the QEW in the south, and from Sixteen Mile Creek in the west, to the Mississauga border in the east.

Click map to enlarge

Holy Trinity Catholic Secondary School Boundary Map
School Boundaries


Holy Trinity Catholic Secondary School has excellent academic programs, and a large array of sports and extracurricular programs that will enrich the high school experience for many students. It scores above average in the Fraser Institute ranking system, and is well regarded in the community. The school is highly recommended.

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Holy Trinity Catholic Secondary School
Article Name
Holy Trinity Catholic Secondary School
Review and description of Holy Trinity Catholic Secondary School, a large high school in north Oakville, Ontario offering French immersion classes. Includes school ranking, boundary map, facilities review.
Publisher Name
Randy Selzer - Real Estate Agent
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