Neudau is a market town with 1,455 inhabitants (1 January 2016) in the judicial district Fürstenfeld and Hartberg-Fürstenfeld in Styria (Austria). On 1 January 2015 its territory was extended by a part of the then existing neighboring town of Limbach bei Neudau (cadastral Unterlimbach). The basis for the Styrian municipality of structural reform.