The Episcopal Diocese of Long Island is the diocese of the Episcopal Church in the United States of America with jurisdiction over the counties of Kings, Queens, Nassau and Suffolk, which comprise Long Island, New York. It is in Province 2 and its cathedral, the Cathedral of the Incarnation, is located in Garden City, as are its diocesan offices.

Current bishop

On the Feast of Theodore of Tarsus, September 19, 2009, Lawrence C. Provenzano was ordained and consecrated as Bishop Coadjutor of the Episcopal Diocese of Long Island. He officially took office as Bishop of Long Island at the Diocesan Convention November 14, 2009, and was seated at the Cathedral of the Incarnation on November 22, 2009.

List of bishops

The bishops of Long Island have been:

1. Abram Newkirk Littlejohn, (1868–1901)
2. Frederick Burgess, (1901–1925)
3. Ernest M. Stires, (1925–1942)
4. James P. deWolfe, (1942–1966)
5. Jonathan G. Sherman, (1966–1977)
6. Robert C. Witcher, (1977–1991)
7. Orris George Walker, (1991–2015)
8. Lawrence C. Provenzano, bishop (2009–present)

History of the Diocese

The Diocese has benefited from large endowments, for example, $10,000 given in 1908 by Roslyn, New York resident John Ordronaux. In 2023, as part of the Uncovering Parish Histories project, the diocese started to investigate its connections to slavery and abolition.