The Roman Catholic Church of the Holy Trinity in Kuldīga is located in the built-up area of the centre of Kuldīga and is the only Catholic church in the town. The three-nave church was built in 1640. Its façade architecture is inspired by the Renaissance, but the interior is in a Baroque style with Rococo influences. The Kuldīga Catholic Church houses the sculpture "Madonna and Child", a significant 16th-century art object.
Latvijasmernieks.lv carried out laser scans of the building's exterior and interior in 2023, which were used to create a simple model of the building and detailed drawings of the floor plan, sections and elevations.