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About MacLachlan College
In short: MacLachlan College is a private, secular, co-ed international school in Oakville, Canada. It offers Montessori Model United Nations (MMUN) and the IB. Stages: preschool, primary, middle school and high school (ages 4–18). Taught in English.
MacLachlan College is an independent, co-educational day school in Oakville, Ontario, in the Greater Toronto Area, serving students from Pre-Kindergarten to Grade 12 across two campuses. It was founded in 1978 by Audrey Hadfield with eight students and later moved into an 1856 mansion in Olde Oakville, which today houses the Lower School for Pre-Kindergarten to Grade 6. A modern Upper School campus on South Sheridan Way serves Grades 7 to 12. The school is small by design, with small classes and flexible, active learning spaces. MacLachlan is an IB World School offering the IB Primary Years Programme in the Lower School and is a candidate school for the IB Middle Years Programme in Grades 7 and 8, while senior students follow the Ontario curriculum with Advanced Placement courses. It has been a Round Square global member since 2020, and its graduates go on to universities in Canada and abroad. Alongside academics the school offers a House system, clubs, field trips and international travel, community service, the Duke of Edinburgh's Award and a High Performance Athletics programme known for prep hockey and climbing. International students are supported with ESL and homestay services.
- Type
- Private
- Faith
- Secular
- Gender
- Co-ed
- Ages
- 4–18
- Approach
- General Curriculum
Fees at MacLachlan College
Curriculum and languages
International programmes
The Lower School follows the IB Primary Years Programme, and from 2026-27 the school is an IB Middle Years Programme candidate for Grades 7 and 8. In high school students earn the Ontario Secondary School Diploma and can take College Board Advanced Placement courses to prepare for leading universities in Canada and abroad. Diploma advisors track each student's pathway from Grade 7.
Languages
English is the language of instruction. The school offers an integrated ESL programme in Grades 1 to 6 and ESL support for international students, and language programmes are part of the Lower School club offer.
Stages and ages
The Lower School campus serves Pre-Kindergarten, Junior and Senior Kindergarten and Grades 1 to 6. The Upper School campus serves the Intermediate grades (7 and 8) and the Senior School (Grades 9 to 12).
Educational approach
Values
MacLachlan's mission is to cultivate intellectual curiosity and inspire students to be active contributors to a changing world. Its values are inclusiveness, innovation, integrity, global awareness and courage, aiming to develop capable, confident and compassionate future leaders in a caring and safe community.
School and family
Extracurricular activities
Sports 11
Arts 4
Culture 2
Athletics combine instructional, competitive and high-performance pathways. Teams play hockey, sport climbing, golf, volleyball, cross country, soccer, ultimate, flag football, basketball, softball, track and field, badminton and padel in the PSAA and HSSAA leagues, and an elite programme supports U18 prep hockey and climbing. Clubs include band, choir, dance, film, chess, robotics and engineering, DECA, HOSA, public speaking and debating, Model UN conferences and Round Square, plus the Duke of Edinburgh's Award.
Facilities and services
Services
Dining
Tuition includes a daily hot lunch, snacks for younger students, textbooks, technology and most field trips. A school bus service with GPS tracking and an inter-campus shuttle is available, and an Extended Hours Program offers care from 7:30 a.m. and until 6:00 p.m. for Kindergarten to Grade 6. Bursaries of up to 20,000 dollars are available through the school's foundation.
Frequently asked questions
Which curriculum does MacLachlan College follow?
Montessori Model United Nations (MMUN) and International Baccalaureate.
What language is MacLachlan College taught in?
Lessons are taught in English.
How do I contact MacLachlan College?
Press Enquire: your message goes to its admissions team, free.