Computer Science at Western
Yes — computer science is a direct-entry program at Western University. You apply to it from Grade 12.
You apply to
Computer Science
80–87%OUAC ECSCo-op available
Prerequisites
- English, ENG4U
- Calculus and Vectors MCV4U
- Advanced Functions, MHF4U
- One of:
- Biology, SBI4U
- Math of Data Management, MDM4U
What to watch for
The Academic Calendar says it flatly: 'Admission to the Computer Science program is direct from Year 1.' ECS and ES are two separate OUAC choices — applying to Science does not get you into Computer Science, and students not registered in the CS program are capped at 1.5 Computer Science courses a year, which is enough for a Minor only. ECS needs six 4U courses with a minimum 70% in each, including ENG4U, MCV4U and MHF4U (plain Science does not require MHF4U). Warning the marketing pages have not caught up to: the Honours Specializations in Information Systems and in Bioinformatics are listed as admission discontinued effective 2027 — the surviving modules are Honours Specialization, Specialization and Major in Computer Science, plus Minors in Computer Science, Game Development and Software Engineering.
Computer Science at the other campuses
Compare the entry programs side by side →- AlgomaDirect entry65%
- BrockDirect entry77–80%
- CarletonDirect entry80–85%
- GuelphDirect entry85–90%
- LakeheadDirect entry70%
- LaurentianDirect entry70%
- Laurier (Waterloo)via Business Administration (BBA) + Computer Science (BSc) (UXA)87–90%
- McMasterDirect entry90%
- Nipissingvia Bachelor of Science (PS)70%
- Ontario TechDirect entry73–77%
- Queen'svia Computing (QD)83–87%
- TMUDirect entry75–80%
- TrentDirect entry70%
- U of T (Mississauga)via Computer Science87–90%
- U of T (Scarborough)Direct entry93–100%
- U of T (St. George)via Computer Science90–93%
- WaterlooDirect entry90–97%
- WindsorDirect entry70–75%
- YorkDirect entry80–83%
Entry routes were researched against each university’s own program pages in 2026-08-16. Western’s page. Faculties restructure — confirm before you apply.