Trinity & St. Philip's Cathedral is a historic church located at Broad and Rector Streets in Military Park in the city of Newark in Essex County, New Jersey, United States. It is the seat of the Episcopal Diocese of Newark. The church building was added to the National Register of Historic Places on November 3, 1972, for its significance in architecture and religion. It was added as a contributing property to the Military Park Commons Historic District on June 18, 2004.