Łaskarzew is a town situated in east-central Poland within the Masovian Voivodeship. It is located in Garwolin County and sits near the Garwolin Forests, positioned on the border of the historic Polish provinces of Lesser Poland and Mazovia.
The town is situated along the Promnik river, which serves as a tributary of the Vistula. As of 2006, Łaskarzew had a population of 4,908 inhabitants.