Jozef Gaganec (25 March 1793 – 22 December 1875) was a Rusyn Greek Catholic hierarch.
He was the bishop of Slovak Catholic Eparchy of Prešov from 1843 to 1875.
Born in Vyšný Tvarožec, Austrian Empire (present day – Slovakia) in the Ruthenian family in 1793, he was ordained a priest on 8 March 1817 for the Ruthenian Catholic Eparchy of Mukacheve.
The principal consecrator was Bishop Vasyl Popovych, and the principal co-consecrators were Archbishop Aristaces Azarian and Bishop Johann Michael Leonhard.
This biographical article about a Slovak Greek Catholic bishop is a stub.