“I feel lucky that I get to go to this school!”

“I’ve been at MacLachlan my whole life, since kindergarten
and it’s like a second home to me.”

“I like how diverse the school is.”

MacLachlan’s vibrant House System includes all students from Pre-K to Grade 12, encouraging school spirit, fair play, participation and achievement. Our house system is comprised of four houses which foster strong bonds with fellow students, as well as providing a healthy rivalry through inter-house activities, house league events and fundraising competitions. Each house name has local historical significance, named after extraordinary founding Oakville settlers. 

Colborne Gators are named after Sir John Colborne who was Lieutenant Governor of Upper Canada from 1828-1836. He was named Governor General of both Upper and Lower Canada from 1838-1839. Sir John Colborne was instrumental in establishing and supporting immigration and education to improve the quality of the British community in Upper Canada. In addition, he championed key infrastructure improvements such as roads, bridges and communication.

Sumner Sharks logo

Sumner Sharks are named after George Johnson Sumner, Oakville’s first Chief Constable and one of the most respected early settlers. He was known as a kind and fair man with a steadfast commitment to civic duties.

Thomas Hawks logo

Thomas Red Hawks are named after Merrick Thomas who oversaw the development and the building of Oakville’s harbour. Mr. Thomas was responsible for his own survival at the age of 9 or 10 after his mother passed away. He was married to William Chisholm’s sister and settled in 1829 in a homestead known as Thomas House.

Chisholm Cheetahs are named after Colonel William Chisholm, founder of Oakville, who purchased 960 acres of land at the mouth of Sixteen Mile Creek to build his vision of what would become the Village of Oakville. His plans included a functioning harbour, harnessing water power for mills and manufacturing, road infrastructure for easy transportation and attracting investors and skilled workers.

Participation in co-curricular clubs and activities is highly encouraged and supported at all grade levels. Our vibrant club program is designed to create a heightened state of involvement that adds depth to our school community, creates school spirit, and forges new friendships. Club involvement encourages students to explore their passions and discover new interests.

Clubs are teacher facilitated which provides faculty and students the opportunity to work together outside the formal classroom setting. Most activities take place during the lunch recess. Some examples of our clubs include:

  • chess
  • robotics
  • music/choir/glee
  • battle of the books
  • yoga
  • knitting
  • trivia
  • lego
  • math competitions
  • intramurals
  • mindfullness
  • running clubs
  • public speaking and debating
  • games


students playing soccer
students in medieval costumes
king and queen of the forest
students on a lake in canoes
kids playing with robot
runner crossing finish line in fall

We are proud to offer a co-educational learning environment at MacLachlan . A co-educational learning environment gives students the practice they need to function in our diverse society and prepares them for the wider community of men and women working together. School is an introduction to the world and during these crucial developmental stages students are growing at a rapid pace, both intellectually, socially and emotionally.

students wearing pinnies on turf field
students meeting around table

Instilling the importance of service is simply part of the culture at MacLachlan. Developing the quality of generosity in our students has a very positive impact in our own community and throughout the world.

Students learn that the giving of one’s time is a very rewarding and compassionate endeavour. It not only brings awareness of the needs of others, it helps students understand that they have the power to make a difference.

Round Square

student mentor and two younger students in art class

Round Square is an internationally diverse network of 200 like-minded schools in 50 countries on six continents that connect and collaborate to offer world-class programs and experiences to our students.

In March 2020, MAC became a Round Square Global Member School.

MacLachlan has a diverse community and incorporates internationalism, the celebration of different cultures, tolerance and acceptance within our school. We are a school that believes in collaboration and innovation and work together, as a community, to cultivate intellectual curiosity in our students and inspire them to be active contributors to our ever-changing world.

Being a Round Square school, MacLachlan shares in their beliefs and approach to education, which is built around six themes, or IDEALS:

  • Internationalism
  • Democracy
  • Environmentalism
  • Adventure
  • Leadership
  • Service

MacLachlan is committed to challenging and exploring the limitations of traditional education by developing a bold and creative vision that promotes an entrepreneurial, success-driven and future-oriented mindset that is integrated into every aspect of school life. Being a Round Square school builds on our strategic direction and vision to provide a unique and highly progressive independent school that educates and graduates students that are prepared for anything as they step into their future. 

Duke Of Edinburgh

student smiling in life vest with canoes in background

The Duke of Edinburgh’s Award was founded by His Royal Highness, Prince Phillip Duke of Edinburgh in 1956.

In 1988 Canada became a founding member of the Duke of Edinburgh’s Award International Association and remains one of the fourth largest National Awards Authorities. Since 1990 MacLachlan has been a member of the program to enhance its commitment to excellence and support exceptional student experiences.

There are four areas of endeavour in the Award:

  • Community Service
  • Expedition/Exploration
  • Skill Development
  • Physical Fitness

Students work through three levels of increasingly rigorous requirement: Bronze; Silver and Gold. Students are eligible to register for the D of E in grade 9. After Bronze is completed, students can then decide whether they want to continue to Silver and Gold Award levels.

Designed to develop independence, resourcefulness, courage, initiative, endurance and perseverance, it provides a unique opportunity for MacLachlan students to develop into people who “make a difference”. This is a challenging and rewarding program and is very much a personal undertaking and not a competition against others.

Community Service

Involvement in outreach activities is considered important for the personal development of our students. Students are involved in activities throughout the year with many local and international agencies. Some of these agencies are:

  • Me to We – Free the Children
  • The Duke of Edinburgh’s Award Programme
  • YPI Youth and Philanthropy Initiative
  • The United Way of Oakville
  • The Terry Fox Foundation
  • The Sir Edmund Hillary Foundation (Nepal)
  • The Canadian Red Cross Society
  • Halton Women’s Shelter
  • The Oakville Humane Society
  • The Fareshare Food Bank
  • The Halton Children’s Aid Society
  • Unicef
  • Rotary International

MacLachlan is committed to providing opportunities for students that support social responsibility and encourages students to become engaged and principled individuals. One of the ways of achieving this is providing senior students the opportunity to participate in international service trips.

MacLachlan values the importance of physical activity and wellness in our students as part of a well-rounded education.  There are many valuable lessons students can learn through participation in athletics. Sport facilitates leadership, perseverance and teamwork, as well as determination to achieve group and individual goals. It encourages team spirit, sportsmanship and pride in representing MacLachlan College. Sport also promotes comradery, nurtures resilience and teaches students to deal with both the joy and disappointment of winning and losing.

As the founding member of the Private School Athletic Association (PSAA), MacLachlan grade 3 – 8 students compete with other private schools throughout the year on a variety of varsity sports including soccer, track and field, cross country, floor hockey and basketball to name a few.

students playing coed soccer

Field trips are an integral part of life at MacLachlan from Kindergarten to grade 12. We believe that having experiences outside of the classroom enriches student learning and gives students an invaluable opportunity to explore their community, their country and other parts of the world.

There are many day trips throughout the school year. Overnight trips are introduced in grade 6. Opportunities for international travel are offered in intermediate and senior grades. Take a look at some of the fantastic images below to get a glimpse into recent excursions.

Day Trips

  • Royal Ontario Museum
  • Art Gallery of Ontario
  • Shaw Festival
  • Stratford Festival
  • Pantages Theatre
  • Medieval Times
  • Chudleigh’s Apple Farm
  • Rogers Centre
  • Oakville Safety Village
  • Young Peoples’ Theatre
  • Mississauga Living Arts Centre
  • Roy Thomson Hall
  • Crawford Lake
  • Canlan Ice Sports
  • The Weather Network
  • Springridge Farm
  • Legoland and Discovery Centre
  • Kortright Centre
  • Toronto Zoo
  • Science Centre Laboratories
  • McMaster Observatory
  • Kelso Conservation
  • Botanical Gardens
  • University of Toronto
  • Metalworks Studio


Travel Grade 6-12

  • Mansfield Outdoor Education Centre
  • Onondoga Camp
  • Algonquin Provincial Park
  • Bark Lake Leadership Centre
  • Camp Wenonah
  • France
  • Spain
  • Italy
  • Nepal
  • England
  • Egypt
  • Greece
  • Japan
  • Ottawa
  • Montreal
  • Quebec City
  • Sudbury
  • Washington
  • Boston
  • Baltimore
  • New York
  • Chicago
  • Cuba
  • Dominican Republic
  • South Africa
  • Costa Rica
  • Kenya
  • Alabama Space Academy

Outdoor education activities are an integral component of the holistic education offered at MacLachlan. These experiential trips provide students an additional level of enrichment that takes them beyond the classroom and provides them with lasting memories.

Further to helping students develop a deep respect for the environment, the outdoor education program also aims to enhance student life skills and improves self-confidence by exposing them to challenging and adventurous experiences and activities. Some of the opportunities include such endeavours as spring and winter camping expeditions, canoeing, hiking, technical rock climbing, leadership camps.

Our program aims to develop in students:

  • A heightened level of self-awareness and strength within themselves
  • A sensitivity to the needs of others
  • An appreciation and understanding of the natural environment
  • Leadership qualities and bonding with fellow students
  • Problem-solving skills
  • Increased self-esteem through physical and mental achievements
  • Practical and interpersonal skills
  • Ability to adapt to different environments
  • Interest in recreational skills
  • Appreciation of the importance of physical fitness
Students in canoes in front of island on a lake
Pulling gear through the snow in a forest
a Long Lake through trees
students in canoes on a lake
students in a canoe on a lake
canoe on a lake with island in the background

Our outdoor education program also supports students who choose to participate in the Duke of Edinburgh’s Award program. Designed to develop independence, resourcefulness, courage, initiative, endurance and perseverance, it provides a unique opportunity for MacLachlan students to develop into people who “make a difference”.

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