St. Mildred’s-Lightbourn School

Oakville, Ontario
smls.on.ca

Inspired Girls. Empowered Women. Since 1891.

For more than 135 years, St. Mildred’s-Lightbourn School (SMLS) has educated girls to lead with confidence, curiosity, and purpose. Set on a picturesque campus in historic Olde Oakville, SMLS is the premier independent JK–12 girls’ school west of Toronto—where academic excellence, character, and community shape the leaders of tomorrow.

The All-Girls Advantage & Academic Excellence

When girls learn in an environment designed specifically for them, they thrive. At SMLS, every voice is valued, giving students the resilience to take risks and lead. Our rigorous academic program spans from a student-centered, Reggio Emilia-inspired Junior School to a robust Senior School Advanced Placement (AP) program. This culture of excellence ensures that year over year, 100% of our graduates are designated Ontario Scholars.

Future-Ready & Experiential Learning

SMLS balances cutting-edge innovation with human-centered collaboration. Students engage early with STEM and robotics, while older students develop critical thinking skills using a secure AI learning platform—becoming architects rather than consumers of technology. We prepare global citizens through Round Square international exchanges and the Duke of Edinburgh program. Notably, all Grade 11 students complete Professional Internships with prestigious organizations like SickKids and EY, gaining invaluable real-world experience.

A Connected K–12 Community

Beyond the classroom, our House system builds a close-knit family where Senior students mentor younger "Millies." Student life is enriched by full-scale theatre productions, competitive athletics, and strategic co-ed partnerships with local boys' schools.

Launching Empowered Futures

With personalized university counseling starting in Grade 8 and an on-site SAT/AP testing centre, SMLS graduates achieve a 100% offer rate to top-tier universities worldwide. Once a Millie, always a Millie—every student joins a global alumnae network of 3,500 accomplished and supportive women.

Discover SMLS—and launch your daughter’s future.

If you have any questions about the admissions process or you would like to arrange a private tour, please email admissions@smls.on.ca.

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