Dudić played six matches for FR Yugoslavia under-21 in the 2000 UEFA European Under-21 Championship qualification, including the playoff against England, losing 3–0. He was selected by Vujadin Boškov for a friendly against China on 25 May 2000, and received his first cap during the match.
Dudić played six matches for FR Yugoslavia under-21 in the 2000 UEFA European Under-21 Championship qualification, including a playoff against England, losing 3–0. He was selected by Vujadin Boškov for a friendly against China on May 25, 2000, and received his first cap during the match.