The Eparchy of Passaic (Latin: Eparchia Passaicensis Ruthenorum) is an eparchy (diocese) of the Ruthenian Greek Catholic Church on the Atlantic seaboard of the United States.

Its episcopal seat is the Cathedral of St. Michael the Archangel in Passaic, New Jersey.

As an Eastern Catholic church, it uses the Byzantine Rite in its services.

Its headquarters are at 445 Lackawanna Avenue, Woodland Park, New Jersey (formerly West Paterson).

On October 29, 2013, Pope Francis appointed Father Kurt Burnette, until then the Rector of Saints Cyril and Methodius Seminary, in Pittsburgh, Pennsylvania (since October 2012), as Eparch-elect of the Eparchy, succeeding William Skurla.