Liebing (Hungarian Rendek) is a village in the district of Oberpullendorf in Burgenland in Austria.

The first written mention in the form Lennek comes from a document by Emperor Sigismund dated 1390.

The town belonged to the estate of Lockenhaus castle.

Until the end of World War I, it belonged in the Kőszeg district of Vas county within the Kingdom of Hungary.

Rendek was transferred to Austria in return for the town of Ólmod in 1923 subsequent to the Treaties of Saint-Germain and Trianon.