Melby Mølle) is a smock mill located at Melby, Halsnæs Municipality, North Zealand, some 60 kilometres (37 mi) north west of Copenhagen, Denmark.
The windmill was built in 1878 for Hans Petersen, a sailor born in 1846 at Sjællands Odde.
[1] The windmill consists of an octagonal tower clad in shingles and topped by an ogee cap.
The mill stands on a stone case, which has an underpass for wagons.
The windmill is owned by Halsnæs Municipality.