The southern Marquesan reed warbler (Acrocephalus mendanae) is a species of Old World warbler in the family Acrocephalidae. It was formerly considered conspecific with the northern Marquesan reed warbler, and together known as the Marquesan reed warbler. It is found only on the southern Marquesan Islands. Subspecies include: Uapou Marquesan warbler, Acrocephalus mendanae dido nominate (Hiva Oa, Tahuata), Acrocephalus mendanae mendanae Mohotani Marquesan warbler, Acrocephalus mendanae consobrina Fatuhiva Marquesan warbler, Acrocephalus mendanae fatuhivae References southern Marquesan reed warbler Birds of the Marquesas Islands southern Marquesan reed warbler Taxa named by Henry Baker Tristram Endemic birds of French Polynesia