Neustadt am Rübenberge (Low German: Niestadt) is a town in the district of Hannover, in Lower Saxony, Germany.

At 357 km2 (138 sq mi), it is the 9th largest settlement in Germany by area (following Berlin, Hamburg and Cologne), though only about 45,000 inhabitants live there.

Neustadt am Rübenberge was founded around 1200, and recorded as a nova civitas (lit.

In 1426 it was recorded as Nienstadt vor dem Rouwenberge und in 1523 as Nygestadt.

Dominic Herbst (Alliance 90/The Greens) has served as mayor since 2019.