Loenersloot is a village in the Dutch province of Utrecht.

Since 2011 it has made part of the new formed municipality of Stichtse Vecht.

By 1156, it became Heinricum de Lonreslothe, and means "ditch near Loenen.

[5] The castle was built in 1258 by the van Loenersloot family as a loan of Otto II, Count of Guelders.

In 1766 it was sold to Hendrik Willem van Hoorn and partially demolished, however van Hoorn was declared bankrupt in 1770, and the new owner restored the castle and turned it into an estate.