Liepāja Holy Trinity Lutheran Cathedral (Latvian: Liepājas Svētās Trīsvienības katedrāle) is a historical Lutheran cathedral in Liepāja, Latvia. The foundation stone of the church was laid in 1742 and on December 5, 1758, the church was solemnly consecrated. The church interior and exterior architecture is built in the late baroque style with classic features. The cathedral interior is characterized by its Rococo features and luxurious furnishings with wood carvings and gold plating.