Mary Ward Catholic Secondary School (abbreviated Mary Ward C.S.S., MWCSS, MW, Mary Ward, or simply Ward) is a Catholic secondary school in Scarborough, Toronto, Ontario, Canada, part of the Toronto Catholic District School Board, formerly the Metropolitan Separate School Board. Mary Ward is a 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.