Viktor Ajbek (9 September 1920 in Vukovar – 3 February 1993 in Zagreb) was a Croatian footballer who played international football for the Croatian national team.
He started playing with the youth side of Vukovar's NK Sloga before moving to top-flight club Concordia Zagreb.
He was champion of Croatia with Concordia in 1942.
He played one match for the Croatian national team: against Romania in Bucharest.