Nørre Alslev (Danish pronunciation: [ˈnɶɐ̯ɐ ˈælˀˌsle̝w]) is a town with a population of 2,352 (1 January 2024)[1] on the northern end of the island of Falster in south Denmark.

The municipality covered an area of 181 km2, and had a total population of 9,595 (2005).

Two bridges connect the former municipality, and the rest of Falster, to Zealand.

The 3,199 metre long Storstrøm Bridge connects the former municipality from near the town of Orehoved to Masnedø, an island in Storstrømmen, and the 201 metre long Masnedsund Bridge (Masnedsundbroen) continues from there to the town of Vordingborg.

The Storstrøm Bridge supports two lanes of traffic, plus a single track of the South Line Railway.