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Principal's Message 408
Principal's Message



We are pleased that you have taken the time to visit Thornhill Secondary School website. Our hope is that you find our website to be user-friendly and informative. 


As you open each of the tabs, you will find that Thornhill offers a variety of learning opportunities for students, ones in which students are able to develop their skills and talents, increase their knowledge and understanding, and form their character.   Thornhill students are encouraged through these opportunities to develop into literate students who are innovative, well-rounded lifelong learners and critical thinkers.  We also aim to foster caring global citizens who maintain inclusive and respectful interactions with others. 


Thornhill Secondary School values a longstanding tradition of excellence.  At the core of that tradition is a caring and committed staff that provides many opportunities for student learning and success and an environment where everyone feels safe, welcome and respected.  Our goal is to ensure that all of our students are challenged to reach their fullest potential by offering a rigorous academic environment paired with supports that may be essential for their success.  We are a vibrant community with many co-curricular activities throughout the year where students can participate in the areas of athletics and arts as well as in various clubs and societies.   


Currently, Thornhill S.S. serves a diverse community and offers programming opportunities to meet the needs and aspirations of all of our students.   Our enrolment this year is just under 900 students.  We have 60 teachers, 13 Educational Assistants, 6 office staff and a team of caretakers who are committed to assisting students in their learning.   Thornhill is a semestered school offering students up to eight courses per year.    


A personalized weekly newsletter for parents/guardians is sent home via email each Friday, which includes information regarding events that have occurred at the school, and upcoming events. It is important that we have a current working email to ensure that you receive this weekly newsletter.  You can advise us of changes and/or additional e-mail addresses by emailing us at  Please use the subject line:   EMAIL ADDRESS FOR PARENT OF [STUDENT’S NAME]


Please visit the Board’s website at to learn more about news and events of our Board.   While there, please also take a moment to view our school’s profile in order to obtain more information regarding our students, EQAO results, and curriculum & co-curricular activities.


Once again, welcome to our school website. I encourage you to contact us at Thornhill if you have any questions or comments as we welcome the opportunity to speak with you.


I wish you all a happy, safe and successful school year.




Go Tigers

 Dan Gillis




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