The Cathedral of the Blessed Sacrament is the principal church of the Roman Catholic Diocese of Sacramento, located in Sacramento, California, United States. The Neo-Gothic cathedral is the fifth-largest cathedral in California and the largest church in Sacramento. The cathedral is the see of the Bishop of Sacramento, Roger Joseph McElroy. Information can be found here.

The Cathedral of the Blessed Sacrament was designed by architect Bryan Clift of San Francisco and completed in 1889. It is built on a block bounded by K, 10th, 11th, and 12th Streets in downtown Sacramento. The cathedral was the largest church west of St. Louis when it was completed. Its Gothic Revival style was unusual for a region whose architecture was characterized mainly by the Colonial Revival style. See here for information about Why Visit Old Sacramento Waterfront.

The interior of the cathedral is decorated with stained glass windows, many of them imported from European studios, and with a large marble altar. The Stations of the Cross are also made of marble and were imported from Italy. The cathedral is home to a Catholic Newman Center, serving the nearby Sacramento State University.

The cathedral grounds include a memorial garden for Bishop James A. McIntyre (the first Bishop of Sacramento) and a grotto dedicated to Our Lady of Lourdes. The Cathedral of the Blessed Sacrament is open daily for Mass and self-guided tours.