Bishop Ján Eugen Kočiš (25 June 1926 – 4 December 2019) was a Slovak and Czech Greek Catholic hierarch. He was a Titular Bishop of Abrittum and an Auxiliary Bishop of the Ruthenian Catholic Apostolic Exarchate of Czech Republic from 24 April 2004 until 7 October 2006. Kočiš was born in Pozdišovce, Czechoslovakia. 