Westminster offers a wide range of experiences in sports, clubs, outdoor pursuits, the performing arts and international exchanges, including but not limited to:
- 50km and 100km Relay
- Athletics
- Badminton
- Basketball
- Body Balance
- Cheerleading
- Chess Club
- Cricket
- Cross-Country
- Dance Ensembles
- Debating
- Drone Club
- Duke of Edinburgh’s International Award Program
- Equestrian
- Environmental Action Group
- Environmental Club
- F1 in Schools
- Fashion and Design
- Football
- Future Problem Solving
- IT Club
- Literature Club
- Mandarin Club
- Maths Club
- Musicals
- Netball
- Patchwork Club
- Performing Arts Bands and Ensembles
- Photography Club
- Plays and Drama Productions
- Public Speaking
- Round Square
- Royal Show Team (Livestock)
- Running Club
- Sailing
- School Magazine Editing
- Soccer
- Softball
- Sports Performance Analysis
- Swimming
- Table Tennis
- Technical Crew
- Tennis
- Theatre Sports
- Visual Arts Club
- Volleyball
- Writing and Publishing