Ønslev is a village 10 kilometres (6.2 mi) north of Nykøbing on the Danish island of Falster.

Under the State sale of 1766, the entire parish was purchased by Johan Christopher von Westen, governed by Vestenborg Manor.

From the beginning of the 19th century, many farms came into private ownership leading families to establish themselves in the village.

At the beginning of the 20th century, the market gardener P. Damgaard produced mainly tomatoes, cucumbers and melons in his 12 greenhouses.

[4] The village now depends largely on Eskilstrup, 3 km to the east, for its school, activities, shops and services.