Rotoiti may be: Places Lake Rotoiti (Bay of Plenty), a lake in the Bay of Plenty area of New Zealand Rotoiti, Bay of Plenty, a locality on the shore of Lake Rotoiti Lake Rotoiti (Tasman), a lake in the Tasman area of New Zealand Mount Rotoiti, a peak in the Frigate Range, Antarctica Rotoiti, the former name of Saint Arnaud, New Zealand
Ships HMNZS Rotoiti, a list of Royal New Zealand Navy ships Rotoiti-class inshore patrol vessel, or Lake class, a class of ships of the Royal New Zealand Navy
See also Rotoitidae, a family of parasitic wasps Rotoita basalis, a wasp in the family Rotoitidae