Thornhill High School offers a comprehensive Canadian curriculum for Grades 7-12, recognized by the Ontario Ministry of Education.
Established in 1986 and headquartered in Vancouver, the Gateway Education Group is a trusted leader in education, committed to empowering students to achieve their academic goals and future aspirations. Thornhill High School proudly stands alongside sister institutions, including Gateway College, Vancouver Island College, and IvyGate Education, as part of this dynamic network.
At Gateway, we believe education extends beyond the classroom. Our holistic support system combines rigorous academic learning with personalized guidance for university planning, career exploration, and personal growth.
From enhancing academic performance to preparing students for post-secondary success, we provide tailored solutions that reflect professionalism, innovation, and a deep sense of responsibility to families.
Nurturing Minds and Character for Grades 7–12
Academics, Mentorship, and Future Planning United
Backed by Gateway Education Group’s Legacy
Thornhill High School is committed to a student-centred approach to education, guided by the “Five Dimensions of the Future” philosophy.
Our mission is to nurture well-rounded individuals by fostering holistic education, creativity, critical thinking, responsibility, and resilience.
We strive to create an inclusive and dynamic learning environment that empowers students to reach their full potential, preparing them to thrive in an ever-evolving world.
Our vision is to be a leading institution that shapes future-ready students equipped with the knowledge, skills, and character to excel in their personal and professional lives.
We aspire to cultivate a community of lifelong learners who are innovative, responsible, and resilient, making meaningful contributions to society while embracing the challenges of the future with confidence and integrity.
We partner with you to navigate challenges, celebrate achievements, and unlock opportunities. We’re here to help you succeed, today and tomorrow.
The Ontario Secondary School Diploma (OSSD) is a diploma granted to high school students in Ontario who successfully complete the required credits and meet other graduation requirements. It is recognized by universities and colleges worldwide.
Yes, a visa or study permit is required if you are an international student studying on-campus at Thornhill High School in Canada.
No, a visa or study permit is not required if you are studying online from outside Canada.
Thornhill High School offers both options:
On-campus study in Canada: International students must obtain a study permit and, if applicable, a Temporary Resident Visa (TRV) or Electronic Travel Authorization (eTA).
Online study from abroad: No visa or study permit is needed since you are not entering Canada.
Make sure to confirm your study mode and check the latest requirements with the school or Immigration, Refugees and Citizenship Canada (IRCC).
The OSSD is highly respected and prepares students for post-secondary education, apprenticeships, or the workforce. It emphasizes critical thinking, creativity, and real-world skills.
Yes, Thornhill High School is authorized by the Ontario Ministry of Education to offer the OSSD program. School #669687.
Students aiming to earn the Ontario Secondary School Diploma (OSSD) and seeking credit for courses completed at an international high school must submit an Equivalent Credit Assessment Application. This process enables our Guidance Team to place students appropriately within the Ontario education system, ensuring a smooth transition and avoiding the repetition of prerequisite material. Once the Equivalent Credit Assessment is completed, students are expected to fulfill all remaining OSSD requirements through an Ontario high school.
Important Note: Without an Equivalent Credit Assessment, courses completed at a school outside of Ontario will not be recognized or counted toward the OSSD.
Yes, students must:
Complete 40 hours of community involvement.
Pass the Ontario Secondary School Literacy Test (OSSLT) or complete the Ontario Secondary School Literacy Course (OSSLC).
Get in touch if you have any questions!
Thornhill High School offers a comprehensive Canadian curriculum for Grades 7-12, recognized by the Ontario Ministry of Education.
