The grey-banded mannikin (Lonchura vana), or grey-banded munia, is a species of estrildid finch known to be found in Anggi Gigi, Tamrau Mountains, and Arfak Mountains in the Vogelkop Peninsula in north-western Papua, Indonesia. This species inhabits mid-mountain wet grassland and marshland. It also can be found on abandoned agricultural plots near human settlements.
The grey-banded mannikin is approximately 10 cm long. This species is a grey pale-headed munia with brownish-grey breast, narrow and grey lower breast-band, rufous-brown belly, dark brown mantle and wings, and pale yellow rump and tail.