Diplomas awarded by Provinces and Territories on completion of Grade 12 will be considered for entry. We typically require applicants to achieve between 75-90% overall from 4-6 subjects at Grade 12. Requirements may vary depending on the Province and the course you're applying for.
For undergraduate courses at York (such as BA, BSc and BEng) you should apply through the Universities and Colleges Admissions Service (UCAS). You can apply independently or through an overseas agent. Please see website for details: https://www.york.ac.uk/study/undergraduate/applying/how-to-apply/