​Siena Catholic College offers numerous enrichment and extension opportunities for students. These include:

• Future Problem Solving
• Da Vinci Decathlon
• Science and Engineering Challenge
• ICAS Competitions
• Tournament of the Minds
• USC Space Challenge
• Debating
• Reader's Club
• Literature Circle
• Science Club
• OzCLO - Australian Computatuinal and Linguistics Competition
• Brainbee Neuroscience Competition
• Program Challenge/Mentorship Program