St Gertrude's Abbey is a complex of former monastic buildings in Leuven, Belgium.

After restoration, the monastic buildings were used between 1917 and 1968 by Benedictine nuns as a house of studies and student residence.

In 1911 the property, which had been converted to industrial purposes, was bought by Canon Armand Thiéry and extensively renovated, with the aid of Joseph François Piscador, to house a museum of medieval architecture.

In 1917 the buildings were acquired by the Benedictine nuns of Paix-Notre-Dame Abbey, Liège, who installed a house of studies and a student residence.

The Benedictines left the site after the 1968 linguistic division of the Catholic University of Leuven.