Ennsdorf is a town in the district of Amstetten, in the state of Lower Austria, Austria. It lies in the eastern part of the country, within the Amstetten district of Lower Austria.
Ennsdorf is located on the Enns river, which forms the border between the states of Lower Austria and Upper Austria. The town sits directly opposite the city of Enns, in Upper Austria, on the far bank of the river.
The town is part of the Amstetten district, one of the administrative districts of Lower Austria. Its position on the Enns places it at the boundary between two Austrian states, with the neighbouring city of Enns lying just across the river.