St. Mark's Cathedral, Episcopal cathedral in Salt Lake City, United States

St. Mark's Cathedral is an Episcopal cathedral in Salt Lake City, Utah, built between 1870 and 1903 in the Gothic Revival style. Its outer walls are of red sandstone originally cut by Latter-day Saints for the Salt Lake Temple, and its doors are painted red. The cruciform interior has exposed wood beams, a metal rood screen, and seating for about 350 people.

St. Mark's parish was organized on November 15, 1870, and its cornerstone was laid on July 30, 1870. The first services were held in the nave on September 3, 1871, while construction continued; the building was consecrated on May 14, 1874. Expansion continued until 1903, when the chancel, west transept, and Chapel of the Resurrection were complete.

The parish was formally organized on November 15, 1870, and the cathedral hosted the 2015 General Convention of the Episcopal Church, where Michael Curry was elected Presiding Bishop and the canons were changed to allow same-sex marriage. Archbishop Desmond Tutu preached here on reconciliation and forgiveness in 2002. On June 14, 2025, during a No Kings demonstration, the cathedral opened as a refuge after a deadly shooting nearby.

The cathedral sits in central Salt Lake City and is easy to reach on foot from nearby neighborhoods. Visiting on a sunny day gives the best view of the light coming through the stained glass windows inside.

The red sandstone of the outer walls was first cut by Latter-day Saints for the Salt Lake Temple; when granite was chosen instead, the Episcopal Church bought the stone for the cathedral. St. Mark's is one of only two churches Richard Upjohn designed west of the Mississippi.