Agustin Calleri
- Date of birth: September 14, 1976
- Birthplace: Rio Cuarto, Argentina
- Residence: Buenos Aires, Argentina
- Height: 6'0'' (1.82 m)
- Weight: 190 lbs (86 kg)
- Plays: Right-handed
In 1999 Agustin Calleri picked up his first ATP win over Jan Vacek at Roland Garros and finished in the top 50 for the first time in 2002. He won his first title as a professional player in Acapulco in 2003 beating his countryman and friend Mariano Zabaleta.
His nickname is Gordo which means Fat in Spanish. He is known as a hard-hitter and he prefers playing on clay.
