Onceşti (Hungarian: Váncsfalva) is a commune in Maramureş County, Romania. It is composed of a single village, Onceşti, part of Bârsana Commune until being split off in 2004.
Coordinates: 47°31′N 23°35′E / 47.51°N 23.59°E / 47.51; 23.59