Guldborg is a fishing village spanning the islands of Falster and Lolland in Denmark. It belongs to Guldborgsund Municipality, in Region Zealand. In 2015 the village had a population of 533, with about 500 living on the Lolland side. The village is located at the narrowest point between the two islands where Guldborg Bridge crosses Guldborgsund (or Guldborg) Sound.