His father, Mihály Iváncsik is a former handball player, who has won the IHF Cup in 1986 and has received silver medal on the World Cup in the same year.[4]
He has two brothers, Gergő Iváncsik and Ádám Iváncsik. Both of them are professional handball players and Hungarian internationals.
He is married. Her wife, Fatouma gave birth to their first daughter, Naima in December 2011 and to their second, Natali in October 2014.