The term Eparchy of Western America or Diocese of Western America may refer to:
Serbian Orthodox Eparchy of Western America, an eparchy (diocese) of the Serbian Orthodox Church Russian Orthodox Eparchy of Western America and San Francisco, an eparchy (diocese) of the Russian Orthodox Church Outside Russia Armenian Eparchy of Western America, an eparchy (diocese) of the Armenian Apostolic Church, under the Holy See of Cilicia Assyrian Eparchy of Western America, an eparchy (diocese) of the Assyrian Church of the East
See also Christianity in the United States Eparchy of Eastern America (disambiguation) Eparchy of Canada (disambiguation)