Sakskøbing, previously spelled Sakskjøbing, is a town on the island of Lolland in south Denmark. It has a population of 4,590. Until 1 January 2007 it was the seat of the former Sakskøbing Municipality, and is now situated in Guldborgsund Municipality in Region Sjælland.

Lolland is the fourth largest island of Denmark, with an area of 1,243 km2 (480 sq mi). Located in the Kattegat, Belts and Sund area, it is part of Region Sjælland. As of 1 January 2022, it has 57,618 inhabitants. Lolland is closely connected to the island of Falster to its east. The locality of Sundby forms a cross-island urban area with Nykøbing Falster, the largest conurbation partially on Lolland. The most populated settlement on Lolland proper is Nakskov.