| 2005 ATP Buenos Aires | |
|---|---|
| Date | 7–14 February |
| Edition | 33rd |
| Category | ATP International Series |
| Draw | 32S/16D |
| Prize money | $355,000 |
| Surface | Clay / outdoor |
| Location | Buenos Aires, Argentina |
| Venue | Buenos Aires Lawn Tennis Club |
| Champions | |
| Singles | |
 Gastón Gaudio[1] | |
| Doubles | |
 František Čermák / Leoš Friedl[2] | |
The 2005 ATP Buenos Aires was an Association of Tennis Professionals men's tennis tournament held in Buenos Aires, Argentina. It was the 33rd edition of the event and was part of the International Series of the 2005 ATP Tour. The tournament was played on outdoor clay court and held from 7 February to 14 February 2005. Second-seeded Gastón Gaudio won the singles title.[3]
- ^ "2005 Buenos Aires – Singles draw". Association of Tennis Professionals (ATP).
- ^ "2005 Buenos Aires – Doubles draw". Association of Tennis Professionals (ATP).
- ^ "ITF – Buenos Aires tournament details". ITF.[permanent dead link]