Earn Your Ontario Secondary School Diploma (OSSD) Online

Ministry-Inspected Ontario School

100% Flexible Online Learning

Personalized Academic Support

University-Focused Pathways

A Trusted Online High School in Ontario

Ontario International School (OIS) is a Ministry-inspected online high school in Ontario, offering students in Canada and around the world flexible pathways to earn Ontario Secondary School Diploma (OSSD) credits and complete their diploma requirements online.

Students may choose OIS for university preparation, credit recovery, flexible scheduling, international study, or other personalized academic pathways.

Ministry Inspected School

Ontario International School (OIS) undergoes regular inspections by the Ontario Ministry of Education. These inspections ensure that instruction in OSSD credit courses meets Ontario curriculum, assessment, and evaluation requirements.

Official BSID: 881793

Ontario International School is registered with the Ontario Ministry of Education under BSID 881793. As a Ministry-inspected private high school, OIS is authorized to grant credits toward the Ontario Secondary School Diploma (OSSD).

Globally Recognized OSSD

The Ontario Secondary School Diploma (OSSD) is a respected Canadian secondary school credential that supports postsecondary pathways in Canada and internationally. Canada consistently performs above the OECD average in international student assessments.

Why Choose OIS

Ontario International School combines flexible online learning, personalized academic support, and Ontario Secondary School Diploma (OSSD) pathways designed around each student’s goals. Explore what makes the OIS learning experience different.

Ontario International School student holding an Ontario Secondary School Diploma (OSSD) certificate while studying online, representing recognized Canadian high school education pathways for domestic and international students.

Earn Your OSSD Online

Complete Ontario secondary school credits online through a flexible pathway designed around your academic goals.

Student studying online from multiple global locations using a laptop and digital learning platform, representing flexible online education that allows students to learn anytime, anywhere, and on any device through Ontario International School.

Learn Anytime, Anywhere

Access your online courses from anywhere and study on a schedule that works for you.

Student receiving assignment grading and academic feedback within 48 hours through Ontario International School’s flexible online learning platform.

48-Hour Grading & Feedback

Receive timely grading and feedback to help you understand your progress and keep moving forward.

Student receiving personalized online academic guidance through a virtual advising session with an Ontario International School educator using a laptop in a modern home study environment.

Personalized Academic Support

Receive support from experienced educators and academic advisors. Access live office hours and chat with OIS's highly qualified teachers.

Student studying online through Ontario International School with flexible year-round enrollment options, showing the ability to start learning anytime during the year from anywhere in the world.

Flexible Year-Round Enrolment

Start your studies throughout the year and progress according to your individual academic plan.

A student participating in an interactive online learning session through Ontario International School’s virtual classroom platform while collaborating with teachers and classmates in real time.

Interactive Online Learning

Interact with teachers and classmates through course discussion areas, collaborative activities, and ongoing online academic support.

Student reviewing a personalized university admissions roadmap through Ontario International School’s online academic planning platform designed to support GPA goals and top university preparation.

Strategic Success Caoching

Every student receives a personalized academic roadmap designed around their goals, current academic standing, and the admission requirements of their intended university or program.

Why Choose Ontario Internarioanl School_Credit Transfer and PLAR

Credit Transfer & PLAR

Have previous learning and eligible credits reviewed to determine how they may contribute toward your OSSD requirements.

Graduate student on a university campus beside signs for OSSD, university admission, scholarships, and future opportunities

Personalized University Pathway Planning

Build an academic pathway based on your goals, previous credits, and postsecondary admission requirements.

Programs Designed for Diverse Student Goals

Choose the OSSD pathway that fits your academic background, current needs, and future goals.

Full OSSD Diploma

Complete your Ontario Secondary School Diploma (OSSD) online through a personalized pathway based on your previous education, credits, and academic goals.

Individual OSSD Courses

Take individual Ontario high school credit courses online to earn required credits, complete prerequisites, or strengthen your academic pathway.

International Students

Earn Ontario high school credits online from outside Canada and work toward an OSSD through a pathway tailored to your educational background and future goals.

Credit Transfer & PLAR

Have your previous education and eligible prior learning assessed to determine which OSSD requirements may already be fulfilled.

Credit Recovery

Get back on track by completing the credits you need through a flexible online learning pathway with academic support.

University Preparation

Plan your OSSD courses and prerequisites around the admission requirements of the postsecondary programs you want to pursue.

Your Pathway to Top Universities

OIS helps students prepare for postsecondary education in Canada and internationally through Ontario Secondary School Diploma (OSSD) courses, personalized academic guidance, and flexible online learning. Students can plan their courses around the admission requirements of their intended university or program.

The Ontario Secondary School Diploma (OSSD) supports postsecondary pathways in Canada and internationally. OIS helps students select appropriate courses and plan their academic pathway based on the admission requirements of their intended university or program.

Meet Our Expert Faculty

Ontario International School’s experienced educators support students through personalized online instruction, academic guidance, and engaging learning experiences. Our teaching team brings expertise across science, mathematics, business, English, and other OSSD subject areas, helping students build the knowledge and skills needed for academic success.

Dr. Mehak Mussawar

Mathematics & Science Teacher

Dedicated to helping students build confidence in mathematics and science through structured instruction, academic support, and interactive learning experiences.

Dr. Sobia Arshad

Biology, Chemistry & Physics Teacher

Helping students build strong scientific knowledge through engaging and inquiry-based learning.

Professional portrait of Mohammed Shah, Business Studies Instructor at Ontario International School (OIS), supporting online OSSD business education and student success.

Mohammed Shah

Business Studies Teacher

Guiding students in developing business knowledge, critical thinking, and leadership skills through practical and real-world learning applications.

Professional portrait of Anna Faisal, Science Instructor at Ontario International School (OIS), supporting online OSSD student learning and academic success.

Anna Faisal

Science Teacher

Passionate about helping students strengthen their scientific inquiry, critical thinking, and academic confidence in a supportive online learning environment.

Veronica Khusial

English Teacher

Supporting students in developing strong communication, literacy, and critical thinking skills.

Professional portrait of Ahmed Khan, Science and Technology Instructor at Ontario International School (OIS), supporting online OSSD student learning and academic success.

Ahmed Abdullah

Mathematics, Science & Geography Teacher

Supporting students in developing analytical thinking, scientific understanding, and problem-solving skills through engaging and student-focused online learning.

Students Success Stories

Hear from OIS students about their experiences with flexible online learning, academic support, and working toward their education and university goals.

My journey at Ontario International School has been such a positive and rewarding experience. Even though the classes are online, I’ve always felt connected, supported, and part of a real school community. The teachers are caring, dedicated, and always available to help.

Testimonial from Amal Atamaz Alsibai sharing her positive experience with Ontario International School’s flexible online learning environment, supportive teachers, and connected virtual school community.

Amal Atamaz Alsibai

University Preparation

I had a great experience at OIS. The teachers supported me throughout the whole course, and everything was explained clearly and understandably. I learned a lot and felt comfortable during my studies.

Arsenii Chashchin

OSSD Student

Before joining OIS, I struggled in regular classrooms and found it difficult to stay focused during lessons. At OIS, I discovered that I learn much better in a flexible environment where I can focus and participate more. OIS has helped me grow academically and personally.

Mohammad Khalil Hussien

OSSD Student

Based on my experience, I truly appreciate my journey at this school. It has helped me acquire important skills and feel prepared to start my university journey. The comprehensive curriculum has helped me progress effectively.

Testimonial from Rami Sharab sharing how Ontario International School’s modern curriculum and supportive online learning environment helped prepare him for university success.

Rami Sharab

OSSD Student

My journey at OIS has been a truly rewarding experience. While the curriculum is academically challenging, I always felt supported because the teachers were consistently there to ensure we understood every concept thoroughly. Overall, I am very happy with my time here and grateful for the guidance I received.

Testimonial from Hajar Elayane describing her rewarding experience at Ontario International School, highlighting academic rigor, supportive teachers, structured learning, and personalized online education.

Hajar Elayane

International Credit Transfer

My experience at Ontario International School was very pleasant. The school environment is positive and supportive, and the teachers are always ready to help. The courses are well organized and easy to understand, and the flexible learning environment made it easier to stay motivated and manage my studies effectively.

Hala Canoe

University Preparation

Start Your OSSD Journey

01 — Book a Consultation

Discuss your goals, academic background, and OSSD pathway options.

02 — Submit Your Information

Provide your academic information and available transcripts or supporting documents.

03 — Academic Assessment & Course Planning

Receive a personalized OSSD pathway and recommended course plan.

04 — Enroll & Start Learning

Complete registration and begin your online courses with ongoing academic support.

Frequently Asked Questions (FAQ)

Is the Ontario Secondary School Diploma (OSSD) recognized by universities?

The Ontario Secondary School Diploma (OSSD) is Ontario’s official secondary school diploma and can be used when applying to postsecondary institutions. Admission requirements vary by university, country, program, and institution, so students should confirm the specific requirements of the institutions they plan to apply to.

Can I take Grade 12 OSSD courses for university admission?

Yes. Students can take individual Grade 12 OSSD courses to complete prerequisites or other credits needed for postsecondary applications. The specific courses and grades required depend on the university and program, so students should check the admission requirements for their intended program.

How long does the free academic assessment take?

After you submit your academic information and available transcripts, the OIS team reviews your previous education, completed credits, and academic goals. You will then receive guidance on your remaining OSSD requirements and recommended academic pathway.

Can international students earn an OSSD online through OIS?

Yes. OIS offers online OSSD credit courses to students studying from outside Canada. Depending on a student’s previous education and remaining graduation requirements, they may work toward individual Ontario secondary school credits or completion of the OSSD through OIS.

Ontario policy recognizes online OSSD credit courses, and inspected private schools can grant credits toward the OSSD when authorized to do so.

What does it mean that OIS is Ministry-inspected?

Ontario International School is a Ministry-inspected private school with BSID 881793. The Ontario Ministry of Education inspects private high schools that seek authority to grant credits toward the Ontario Secondary School Diploma (OSSD). These inspections focus on the standard of instruction in OSSD credit courses, including curriculum requirements and assessment and evaluation practices.

Can I take OIS courses while enrolled at another school?

Yes. Students may take OSSD credit courses through an inspected private school while attending another school. Ontario policy specifically confirms that students registered in publicly funded schools may concurrently earn credits through an inspected private school.

How does OIS assess my previous high school credits?

OIS reviews a student’s previous academic records to determine how prior learning may apply toward OSSD requirements. For students transferring from outside Ontario or other eligible educational settings, prior learning may be assessed through Ontario’s Prior Learning Assessment and Recognition (PLAR) process, including equivalency assessment where applicable.

How do online assessments and exams work at OIS?

Assessments are completed online and may include assignments, projects, tests, examinations, and other forms of evaluation depending on the course. Students receive course-specific instructions and academic support throughout their studies.

How quickly will I receive grading and feedback?

OIS teachers provide grading and academic feedback within 48 business hours of submission, helping students understand their progress and continue moving through their coursework.

Can I earn the full Ontario Secondary School Diploma (OSSD) online?

Yes. Eligible students can work toward completing the Ontario Secondary School Diploma (OSSD) through authorized online OSSD credit courses. The requirements a student must complete depend on factors such as when they entered the Ontario secondary school system, previously earned credits, and their individual academic history.

The OSSD requires a minimum of 30 credits, along with the applicable literacy, community involvement, online-learning, and financial-literacy graduation requirements. Specific requirements may vary depending on a student’s cohort and academic history.

Start Your OSSD Journey Today

Take the next step toward your academic goals with a personalized OSSD pathway designed around your previous education, remaining requirements, and future plans.

Request a Free OSSD AssessmentBook a Free Consultation
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