The ant fauna of the Fijian archipelago is a diverse assemblage of endemic radiations, pan-Pacific species, and exotics introduced from around the world. The Ants of Fiji describes the entire Fijian ant fauna, and includes the results of a recently completed archipelago-wide biodiversity inventory. A total of 187 ant species representing 43 genera are recognized here with an illustrated key to genera, synopses of each species, keys to species of all genera, and a species list. The work is heavily illustrated with specimen images, distribution maps, and habitat elevation charts.