London District Christian Secondary School, LDCSS or London Christian is a Christian private secondary school in London, Ontario. LDCSS was formed in 1965, and is governed by a membership-elected Board. It is a member of the Ontario Alliance of Christian Schools, and follows the Province of Ontario education curriculum. LDCSS is a member school of the Thames Valley Regional Athletic Association and of WOSSA as well as OFSAA. LDCSS is categorized as a "A" school. The principal is Mrs.