St. Joseph's Secondary School (Cornwall, Ontario)

St. Joseph's Secondary School (SJSS) or St. Joseph's Catholic Secondary School (SJCSS) is a separate (publicly funded Catholic) secondary school in Cornwall, Ontario, Canada. Falling under the jurisdiction of the Catholic District School Board of Eastern Ontario, it shares its building with the newly amalgamated Sacred Heart Catholic School and grade 7-8 wing (where General Vanier Intermediate School was previously housed).

Additionally, Ahkwesahsne Mohawk Board of Education (AMBE), which operates schools on the Canadian portion of Akwesasne, has a tuition agreement to send high school students to this school.