Utrecht refers to various cities and areas: Utrecht (province), of the Netherlands Utrecht (city), Netherlands, and capital of the province of the same name Utrecht (agglomeration), in the Netherlands, includes the city of Utrecht Bishopric of Utrecht, historic, of the Netherlands Roman Catholic Archdiocese of Utrecht Utrecht, KwaZulu-Natal in South Africa It may also refer to: Union of Utrecht, treaty signed in 1579, regarded as the foundation of the Dutch Republic Union of Utrecht (Old Catho… (More on Utrecht)