| Neustadt | |
| Type: | Stadt |
| Image Coa: | Wappen Neustadt (Hessen).svg |
| Coordinates: | 50.85°N 16°W |
| Image Plan: | Marburg Biedenkopf Neustadt.png |
| State: | Hessen |
| Region: | Gießen |
| District: | Marburg-Biedenkopf |
| Elevation: | 240-300 |
| Area: | 56.88 |
| Postal Code: | 35279 |
| Area Code: | 06692 |
| Licence: | MR |
| Gemeindeschlüssel: | 06 5 34 016 |
| Website: | www.stadt-neustadt-hessen.de |
| Mayor: | Thomas Groll[1] |
| Leader Term: | 2018 - 24 |
| Party: | CDU |
Neustadt is a town in the Marburg-Biedenkopf district in Hesse, Germany.
Neustadt lies in the Middle Hessian Bergland ("Highland") at the eastern end of Marburg-Biedenkopf district.
Neustadt borders in the north on the community of Gilserberg, in the east on the town of Schwalmstadt and the community of Willingshausen (all three in the Schwalm-Eder-Kreis), in the southeast on the community of Antrifttal, in the south on the town of Kirtorf (both in the Vogelsbergkreis), and in the west on the town of Stadtallendorf (Marburg-Biedenkopf).
Neustadt has, as well as the core community known as Neustadt, centres known as Mengsberg, Momberg and Speckswinkel.
After municipal elections on 26 March 2006, the town council is arranged thus:
| Parties and Voter groups | Share in % | Seats | |
| CDU | Christian Democratic Union | 59.9 | 15 |
| SPD | Social Democratic Party of Germany | 27.6 | 7 |
| REP | Republicans | 6.1 | 1 |
| FWG | Free Voter Community | 6.4 | 2 |
| total | 100 | 25 | |
Neustadt's coat of arms, like many throughout western Germany, depicts Saint Martin of Tours cutting off a piece of his cloak for a poor man and the Wheel of Mainz.
Neustadt is a member of the international town friendship called the Arbeitsgemeinschaft Neustadt in Europa, which as of 2005 had 34 member towns – all named Neustadt – in five countries.