A geological map of Viti Levu (scale 1 : 500,000) is presented, using a revised terminology with all units based on lithology and field relationships. The Wainimala Group, ranging from Eocene to about Middle Miocene, with a possible break in deposition of the Oligocene, was intruded by rocks of the Tholo Plutonic Suite, apparently in at least two periods. The Savura Volcanic Group and the Singatoka Sedimentary Group are mid-Miocene. The aforementioned rocks are covered by Mio-Pliocene sedimentary rocks with some andesite, classified as the Ra, Nandi, and Navoso Sedimentary Groups, and the Mendrausuthu Andesitic Group. Later rocks constitute the Koroimavua Andesitic Group, Mba Basaltic Group, and Thuvu and Verata Sedimentary Groups, which are Pliocene, with possibly some Pleistocene strata. Young intrusive rocks are mostly plugs and stocks associated with volcanic centres. A bibliography of geology of Fiji is given as an appendix.