The Archdiocese of Newark is served by four Auxiliary Bishops who assist Cardinal Joseph W. Tobin, C.Ss.R., Archbishop of Newark, in the administration of its parishes in particular counties.
- Most Reverend Manuel A. Cruz, D.D., Titular Bishop of Gaguari and Auxiliary Bishop of Newark - Episcopal Vicar for Essex County
- Most Reverend Elias R. Lorenzo, O.S.B., Titular Bishop of Tabuda and Auxiliary Bishop of Newark - Episcopal Vicar for Union County
- Most Reverend Michael A. Saporito, Titular Bishop of Luperciana and Auxiliary Bishop of Newark - Episcopal Vicar for Bergen County
- Most Reverend Gregory J. Studerus, Titular Bishop of Tarasa in Byzacena and Auxiliary Bishop of Newark - Episcopal Vicar for Hudson County
*Most Reverend John W. Flesey, S.T.D., D.D., is the retired Episcopal Vicar for Bergen County.