| Neustadtl an der Donau | |
| Settlement Type: | Municipality |
| Pushpin Map: | Austria |
| Pushpin Mapsize: | 270 |
| Pushpin Map Caption: | Location within Austria |
| Coordinates: | 48.1833°N 68°W |
| Subdivision Type: | Country |
| Subdivision Name: | Austria |
| Subdivision Type1: | State |
| Subdivision Name1: | Lower Austria |
| Subdivision Type2: | District |
| Subdivision Name2: | Amstetten |
| Parts Style: | para |
| Leader Title: | Mayor |
| Leader Name: | Franz Kriener |
| Leader Party: | ÖVP |
| Elevation M: | 509 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Timezone Dst: | CEST |
| Utc Offset: | +1 |
| Utc Offset Dst: | +2 |
| Postal Code Type: | Postal code |
| Postal Code: | 3323 |
| Area Code Type: | Area code |
| Area Code: | 07471 |
| Website: | www.neustadtl.at |
Neustadtl an der Donau is a town in the district of Amstetten in Lower Austria in Austria.
Neustadtl an der Donau lies in the Mostviertel in Lower Austria on the Danube. About 41 percent of the municipality is forested.