Diego Jesús Quintana (born 24 April 1978) is an Argentine footballer who spent his career mostly playing for Skoda Xanthi F.C. in Greece.
Quintana started his career in 1996 with Newell's Old Boys where he played 140 times, scoring 18 goals. After three seasons with Real Murcia of Spain he returned to Argentina to play for newly promoted Instituto de Cordoba in the Apertura 2004 tournament. After a brief spell with Barcelona Sporting Club of Ecuador in 2005 he joined Skoda Xanthi F.C. of Greece.
He scored the winning goal at the FIFA Youth World Cup in 1997 against Uruguay in front of 62,000 spectators at the Shah Alam Stadium in Kuala Lumpur, Malaysia.