The Episcopal Diocese of Pittsburgh is a diocese in the Episcopal Church in the United States of America. Geographically, it encompasses 11 counties in Western Pennsylvania. It was formed in 1865 by dividing the Episcopal Diocese of Pennsylvania. The diocesan cathedral is Trinity Cathedral in downtown Pittsburgh. The Rt. Rev. Ketlen A. Solak was consecrated and seated as its current bishop in autumn 2021.

Trinity Cathedral is an Episcopal Church in downtown Pittsburgh, Pennsylvania and is the cathedral for the Episcopal Diocese of Pittsburgh.