Ambassadors Club
Archery Club
Art Open Studio
Asian Students' Association
Black Students Union
Book Club
Chess Club
Choir
Crochet Club
DECA
Dungeons & Dragons
Eco Club
Embracelet
eSports
French Club
Gender & Sexuality Alliance
Guitar Club
Improv Club
Letters Together
Live Loud
Model UN and Debate Club
Muslim Student Alliance
O'Neill Athletic Association (OAA)
O'Neill Theatre Troupe (OTT)
Performing Arts Council (PAC)
Photography Club
Positive School Climate Team
Robotics
Student Council
Tamil Student Alliance
Trivia Club
Yearbook Club
Yoga Club
Badminton (Co-Ed)
Basketball (Boys & Girls)
Baseball (Boys)
Cricket (Co-Ed)
Cross-Country
Curling
Football (Boys)
Golf
Hockey
Rugby 15s (Boys)
Soccer (Boys & Girls)
Softball (Girls)
Tennis
Track & Field
Ultimate Frisbee (Co-Ed)
Volleyball (Boys & Girls)
Grade 9 Day
Terry Fox Run
Orange Shirt Day
Spirit Weeks
Semi-Formal
Pink Shirt Day
Leadership Camp
Grad Gala