Claudio Javier López (born July 17, 1974 in Córdoba, Argentina) is an Argentine football striker, who currently plays for Club América in the Primera División de México.

El Piojo (The Louse) began his professional career with Estudiantes de La Plata in his native Argentina in 1990 as a 16-year old. However, he moved to Racing de Avellaneda the next year, where he would remain until he transferred in 1995 to Spanish club Valencia CF.

He remained with Valencia for five years, helping the team to be runner-up in the UEFA Champions League in the 1999-2000 season, when he was transferred to S.S. Lazio of Serie A for a sum of 35 million Euros. Unfortunately, López suffered with injury problems while at Lazio, and was unable to fulfill the hopes that accompanied him.

López joined Club América for the 2004 Apertura, where he played in 17 games, scoring four goals.

He had a distinguished career with the Argentine national team. After winning a gold medal with the Under-23 team during the 1996 Summer Olympics, López made appearances in both the 1998 and 2002 World Cups.