Greenhills is a suburb of Dublin in Ireland. It sits between Kimmage, Tallaght, Templeogue, Terenure and Walkinstown. It is generally understood to comprise the Greenhills Estate (the "saints" roads, e.g. St. Josephs's Road, St. James's Road, St. Peter's Road) as well as Greenpark, Limekiln and Temple Manor. Some would also include the estates of Fernhill, Mountdown, and Glenmurray in a broader definition.The postcode is Dublin 12.