The Protestant Reformed Church of Luxembourg (Luxembourgish: Protestantesch-Réforméiert Kierch vu Lëtzebuerg, French: Église Protestante Réformée du Luxembourg, German: Protestantisch-Reformierte Kirche von Luxemburg) is a Protestant reformed church that operates solely in Luxembourg.
Established in 1982 by decree of Grand Duke Jean, it is one of the six state-supported denominations in Luxembourg.