Katanec was a member of the Yugoslavia national team squad at 1984 European Championship in France, but he has fonder memories of 1984 Olympics in Los Angeles, where Yugoslavia team won a bronze medal. He was playing successfully in the qualifying round for 1990 FIFA World Cup in Italy so he became the third Slovenian to play at a World Cup, where he appeared in three of Yugoslavia's five matches. These would be his last three caps for Yugoslavia. Altogether, he appeared in 31 matches and scored 5 goals.