Carlos Javier Weber (born January 6, 1966) is a former volleyball player from Argentina. With 613 caps for Argentina as a setter from 1985-2002, Weber took part in some of Argentina’s greatest results. He represented his native country at three Summer Olympics, starting in Seoul (1988). There he won the bronze medal with the men's national team. Weber also competed at the 1996 and the 2000 Summer Olympics. He won also gold at the 1995 Pan American Games gold, and competed at five World Championship campaigns.