St. Brother André Catholic High School

St. Brother André Catholic High School is a Catholic secondary school in Markham, Ontario, Canada. Grades 9 to 12 are taught, with religious studies included in the curriculum. It is named after Saint André Bessette (also known as Brother André), a 20th-century Catholic religious brother in Montreal responsible for the construction of the Saint Joseph's Oratory.

Brother André is located in east-central Markham, and its feeder schools include

• St. Kateri Tekakwitha CES
• San Lorenzo Ruiz Catholic Elementary School
• St. Edward CES
• St. Joseph CES (Markham)
• St. Julia Billiart CES
• St. Justin Martyr (Markham)
• St. Patrick CES (Markham)
• St. Mark CES (Stouffville)
• St. Brigid CES (Stouffville)
• St. Brendan CES (Stouffville)