The Student Activities Office at Justin-Siena realizes the integral nature of strong co-curricular programs.

The Student Activities Office oversees the Directors of Lasallian Student Life, the Student Council, the various clubs and organizations that are student run as well as oversees Homecoming and Founders' Week.

Student Activities as a vehicle to animate the Lasallian mission of Justin-Siena seeks to provide:

• Experiences that meet and develop the intellectual, emotional, physical, social, and spiritual needs of the students;
• Opportunities for students to serve and to lead;
• Wholesome outlets for the expression of responsible ideas and opinions;
• A stronger sense of community and the need to serve the community;
• Development of interest in activities that become lifelong pursuits.