He played also with the Argentina national football team, scoring two goals in the 1991Copa América, and winning the competition. In the 1993 edition of the Copa America he was to play regularly in order to replace banned Claudio Caniggia, but unfortunately for Franco, he was tackled in Argentina's first match and had ruptures of tibia and fibula, which effectively brought his career on the backfood.
Franco was the football manager of Tecos UAG until Saturday August 18, 2007 when the president of the club fired him after Tecos lost 4-1 to Pachuca in the first game and then a lost 3-0 to Atlante in the third game. The only point he earned was to a 0-0 draw to Chivas de Guadalajara in the second game. In Clausura 2009, Atlas lost 2 games and lost 4-0 to Cruz Azul in the second game. At the end of second game, Dario Franco got fired of his bad performances. He got replaced by Ricardo La Volpe to become a next coach for the team CF Atlas. At the end of 2012, Franco signed a contract with |Universidad de Chile, but he got fired after 6 months as a result of an overall bad performance.