About Us

Sinclair Secondary School is located in Whitby, Ontario and serves students in Grade 9 through Grade 12.

Mission statement

Commitment to Excellence through a focus on well-being, building community and student growth.

Principal’s message

Believing that every learner can be successful.

Welcome to the 2023-2024 school year.  Sinclair Secondary School is a school committed to the Durham District School Board’s vision of equity, well-being and student growth. Staff work alongside students to develop skills and competencies to ensure success in an ever-changing global landscape. Together, we will continue to work towards making our school an integral part of our community. We encourage you to become involved in the many co-curricular opportunities available that will enhance and enrich your learning experiences.  We look forward to working with you this year.

“Education is the most powerful weapon you can use to change the world” – Nelson Mandela