Loye Castle is a castle in the Belgian municipality of Lummen.
Loye Castle was built in 1429. Due to its specific character as a defensive castle, one cannot immediately recognize one specific architectural style. The castle contains important parts in Gothic, Maasland Renaissance style (1649) and in Classicist style (1784). The access bridge is striking, characterized by two upright lions. The two windows on the left on the east side are painted instead of real ("trompe-l'oeils"). This allows the luxury tax on window surface to be avoided.
The castle was successively inhabited by the families of Horion, Van Elderen, Van der Heyden a Blisia and De Fabribeckers de Cortils et Grâce. The most famous resident of the castle was Johan Lodewijk van Elderen, who was Prince-Bishop of Liège from 1688 to 1694.
The surrounding castle domain, bordering the Demer, has a surface area of over 300 hectares. It is a valuable nature reserve with important deciduous forests and ponds with numerous rare plant and animal species. The Sterkapel is also located on the castle domain.
The castle and the surrounding domain are privately owned and therefore not accessible. The road to the Sterkapel is only accessible to the public in the Marian month of May.