The 1999 ATP Buenos Aires was an ATP Challenger Series tennis tournament held in Buenos Aires, Argentina. The tournament was held November 15 to 22, 1999.

Finals Singles Franco Squillari defeated Hernán Gumy 5–7, 6–1, 6–4

Doubles Guillermo Cañas / Martín García defeated Paul Rosner / Dušan Vemić 6–4, 6–-4

External links International Tennis Federation (ITF) tournament edition details