The Archdiocese of Utrecht is an archdiocese of the Latin Church of the Catholic Church in the Netherlands. The Archbishop of Utrecht is the metropolitan of the ecclesiastical province of Utrecht. There are six suffragan dioceses of the province: Roman Catholic Dioceses of Breda, of Groningen-Leeuwarden, of Haarlem-Amsterdam, of Roermond, of Rotterdam, and of 's-Hertogenbosch. The cathedral church of the archdiocese is Saint Catherine's Cathedral, which replaced the prior cathedral, Saint Martin's Cathedral after it was taken by Protestants in the Reformation.

Utrecht is the fourth-largest city of the Netherlands, as well as the capital and the most populous city of the province of Utrecht. The municipality of Utrecht is located in the eastern part of the Randstad conurbation, in the very centre of mainland Netherlands, and includes Haarzuilens, Vleuten en De Meern. It has a population of 361,699 as of December 2021.