The classical Ordovician graptolite succession of Victoria has long been taken as standard for the region and widely used for subdivision and correlation of Ordovician sequences around the world. We review the Victorian succession and incorporate other Australian and New Zealand graptolitic sequences into an Australasian set of zones and stages. Thirty zones are recognized and defined, of which one (Ca4,Isograptus victoriae maximodivergens) is new and two (La1, Da4) each comprise two subzones. Several zones are redefined, but the previous zone notation has been retained. Nine stages are recognized (as previously) and defined, six (Lancefieldian, Bendigonian, Chewtonian, Castlemainian, Yapeenian, Darriwilian) in the Early Ordovician and three (Gisbornian, Eastonian, Bolindian) in the Late Ordovician; reference sections for each are nominated. The Bolindian stage contains 5 zones, here designated Bol-5. The Australasian stages are correlated internationally.