St. Joseph's College School

St. Joseph's College School (St. Joseph's College, SJCS, or St. Joe's, more colloquially known as St. Joe's Wellesley), originally known as St. Joseph's Academy for Young Ladies is a girls' Catholic high school in downtown Toronto, Ontario, Canada operated by the Toronto Catholic District School Board, formerly the Metropolitan Separate School Board in which the school is a member since 1987.

Founded in 1854 by the Sisters of St. Joseph, it turned 150 years old in the school year 2004-2005 and turned 160 years old in the school year 2014–2015. In the year 2010–2011, the Fraser Institute ranked St. Joseph's College amongst the top 5% of Ontario schools.