Mary Ward Catholic Secondary School (abbreviated Mary Ward C.S.S., MWCSS, MW, Mary Ward, or simply Ward) is a Roman Catholic secondary school of the Toronto Catholic District School Board in Scarborough, a district of Toronto. Also called the Wolverine's Den, Mary Ward is a unique centre of self-directed learning and a member of the Canadian Coalition of Self-Directed Learning. It is one of only two self-directed learning schools currently in Ontario and seven in Canada. The school is named after Mary Ward, a seventeenth-century English Catholic nun who founded the Loreto Sisters.