Studying Health Sciences in Ontario
You can’t always apply to health sciences directly. Some universities admit you straight into it; others admit you into a broad first-year category and you choose health sciences later. That difference is why searching for a major by name can make it look like a university doesn’t offer it.
Apply broad, choose health sciences later
University of Toronto — St. George
Apply to Life Sciences (including Psychology)
You choose health sciences at the end of first year.
St. George has no program called Health Sciences — that page does not exist, and the Health Sciences stream is a Scarborough thing. The equivalents here are Health and Disease, Global Health and Human Biology, all limited enrolment off BIO130H1 and CHM135H1/CHM136H1 (below 65% in BIO130H1 is not considered). Public Health is separate again, an HBA Major listed under TAX or TAH.
https://future.utoronto.ca/program/health-and-disease/University of Toronto — Mississauga
Apply to Life Sciences
You choose health sciences after first year (4.0 credits).
The program is Biology for Health Sciences, requested after first year from inside Life Sciences. UTM has no separate health sciences faculty and no BHSc degree — this is an HBSc.
https://www.utm.utoronto.ca/future-students/programs/biology-health-sciencesUniversity of Toronto — Scarborough
Apply to Health Sciences stream (OUAC TXF, TXD or TXH)
You choose health sciences you select the stream on OUAC; your actual major is declared at the end of first year.
"Health Sciences" at UTSC is a stream layered on three admission categories, not a degree, and it has its own OUAC codes: TXF (Psychology & Health Studies), TXD (Life Sciences), TXH (Physical & Environmental Sciences). Applying to the plain codes TPS, TSL or TSP will not put you in it. It adds the Certificate in Pathways to Health Professions and is direct-from-high-school only — any post-secondary study makes you ineligible. Separately, Health Policy is an Arts program under TUD, while Population Health (HBSc) is under TPS.
https://www.utsc.utoronto.ca/admissions/programs/health-sciences
Apply straight to health sciences
Western
You apply to Health Sciences by name (EW), then select your module before entering second year: Health Sciences, Health Sciences with Biology, Rehabilitation Sciences or Public Health. Requires ENG4U, SBI4U and one of MHF4U/MCV4U/MDM4U. If you want Health Sciences with Biology you also need SCH4U, which is the prerequisite for the required first-year chemistry. EW is a separate OUAC choice from Kinesiology (EP).
Queen's
Verified verbatim: "English 4U with a minimum grade of 80%, Biology 4U, Chemistry 4U, and Advanced Functions 4U or Calculus and Vectors 4U." Note either math satisfies it. A Supplementary Application (written plus video response) is mandatory for the ON-CAMPUS BHSc and due Feb 15; the fully online BHSc does not require it. Specialized learning tracks are chosen inside the degree, not applied to. Treat the published minimums as a floor, not a competitive average.
McMaster
Direct entry, supplementary application required (early-to-mid February deadline), and one of the most competitive programs in Ontario. Two traps: it requires a Grade 12 U/M course that is not math, science or technology-based, and 'Health and Society I' is a completely different Faculty of Social Sciences program whose own page states it is not affiliated with Health Sciences.
Waterloo
Direct entry, and a completely separate admission program from Public Health — these are the two codes people conflate. Health Sciences requires BOTH Biology and Chemistry plus math and English at 70%, admission average mid-80s regular and high 80s co-op; it is the science-heavy, clinical/pre-med-leaning one. Public Health requires only any 4U English at 75% and any 4U math at 70%, admission average low 80s regular and mid-80s co-op, and is population and policy focused.
Read off each university’s own admissions pages, and covering the seven campuses Ontario students apply to most. Entry structures change — confirm with the university before you build a timetable around one. Search all programs.