Toronto District School Board
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Leaside High School

'Seas Gu Dileas', Gaelic for "Stand Faithfully." 


Founded in 1945, Leaside continues to maintain a tradition of academic excellence.  The size of our student population allows for a caring environment in which staff get to know their students as individuals.  We are dedicated to academic achievement and the preparation of our students for post-secondary education and life in a changing society. 
Leaside offers a semestered program from Grades 9 to 12.  Each discipline offers a continuum of skill development to prepare students for a future of lifelong learning.  Leaside offers a range of programs for students with diverse interests, including numerous languages, digital photography, forensics and communications technology.