St. Olave's Grammar School (formally St. Olave's and St. Saviour's Church of England Grammar School) (/ˈoʊlævz/ or /ˈɒlɪvz/) is a selective secondary school for boys in Orpington, Greater London, England. Founded by royal charter in 1571, the school occupied several sites in Southwark, before establishing a location on Tooley Street in 1893. It moved to the suburb of Orpington in 1968, and has admitted girls to its sixth form since 1998.