Now Accepting Applications for Fall 2025!

Your Gateway to Global University Success—Right from Ontario.

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Upcoming Event

Discover Global University Pathways with the OIHS International High School Diploma

May 5, 2025
8:00 PM TRT (Turkiye)
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OIHS strengthened my international perspective and language skills while helping me develop critical thinking and problem-solving abilities. This experience played a major role in my journey to study business in Germany.

Defne F.

My education at OIHS made it easier to adapt to the Canadian high school system and gave me a strong foundation for my university applications. The support I received during this process truly made a difference in my career path.

Tuana E.

Ontario Secondary School Diploma (OSSD)

A globally recognized high school credential that opens doors to universities worldwide

The Ontario Secondary School Diploma (OSSD) is the official high school graduation certificate issued by the province of Ontario, Canada. As one of the most respected educational credentials globally, the OSSD is recognized by universities and colleges around the world, providing students with a competitive advantage in their academic and professional journeys.

Requirements

  • 30 courses (18 compulsory, 12 elective)
  • 40 hours of community service

Benefits

  • Globally recognized qualification
  • Pathway to top universities worldwide
  • Comprehensive education in multiple subjects

Quick Facts

  • Recognized by almost all universities worldwide.
  • 1-year, 2-year, and 4-year programs tailored to different student goals and learning needs
  • Available to international students

Your gateway to global education and personalized learning

Discover OIHS's unique approach to education, offering tailored pathways to university, globally recognized diplomas, flexible study options, small class sizes, and a proven track record of university acceptances.