The Cathedral of the Madeleine is a Roman Catholic church in Salt Lake City, Utah, United States. It was completed in 1909 and is the cathedral, or mother church, of the Diocese of Salt Lake City. It is the only cathedral in the U.S. under the patronage of St. Mary Magdalene.

Salt Lake City, often shortened to Salt Lake or SLC, is the capital and most populous city of the U.S. state of Utah. It is the seat of Salt Lake County, the most populous county in the state. The city is the core of the Salt Lake City Metropolitan Statistical Area (MSA), which had a population of 1,257,936 at the 2020 census. Salt Lake City is further situated within a larger metropolis known as the Salt Lake City–Ogden–Provo Combined Statistical Area, a corridor of contiguous urban and suburban development stretched along a 120-mile (190 km) segment of the Wasatch Front, comprising a population of 2,746,164, making it the 22nd largest in the nation. With a population of 200,133 in 2020, it is the 117th most populous city in the United States. It is also the central core of the larger of only two major urban areas located within the Great Basin.