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Archbishop O’Leary Catholic High School
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About
Welcome Back/School Start Up Information
Welcome to O'Leary
Welcome from the Principal
O'Leary Highlight Videos
Open House
Registration Information
O'Leary Program Info Viewbook
School Information
Parent Information
School and Transportation Fees
School Assurance Dashboard
Catholic Faith
Calendar
Contact Us
Programs
Student Life
2025 Spartan Showdown (Feb. 6-8)
Archbishop O'Leary Spartan TV
Citadel Club
Creating Communities of Belonging
Inclusive Communities & Student Conduct Policy
Final and Diploma Exam Schedule
O'Leary Grad 2025
Student and Parent Handbook
O'Leary Morning Update
O'Leary Swag Store
School Resource Officers
Prospective Students
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"Viam Veritatis Elegi" - We Will Seek the Truth
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Return to Classes: What ECSD Families Need to Know
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PDT - Blk 3 Class
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PDT - Blk 4 class
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PDT - BLK 5 CLASS
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NO PDT
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ECSD Board Chair and Vice-Chair Re-Elected
132 Avenue Construction Information
Diploma Exams
Hispanic Canadian Heritage Month
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