Liseleje is a former fishing village and popular tourist resort in Halsnæs Municipality, North Zealand, some 60 kilometres northwest of Copenhagen, Denmark.

It has merged with neighbouring Asserbo, forming an urban area with a combined population of 2,470 (1 January 2024).

Liseleje Plantage, a wooded area planted in the late 19th century to combat drifting sand, is located to the east of the town.

The entire area belonged to Arresødal Manor which was created by Major General Johan Frederik Classen on 1773.

Classen founded the fishing village in 1784 with the aim of providing food for the workers at his gunpowder mill at Frederiksværk.