St. Illtud's Church is a historic church located in Llantwit Major, Wales. It is dedicated to St. Illtud, a 6th-century monk and founder of a monastic school in the area. The church features a mix of architectural styles, including Norman and Gothic, reflecting its long history. The church is known for its impressive stonework and ancient artifacts, including a collection of medieval grave slabs. It serves as a place of worship and community gathering, attracting visitors interested in its rich heritage and beautiful surroundings.