| 2009 Copa Petrobras Buenos Aires | |
|---|---|
| Date | 28 September – 4 October |
| Edition | 6th |
| Location | Buenos Aires, Argentina |
| Champions | |
| Singles | |
 Horacio Zeballos | |
| Doubles | |
| Brian Dabul / Sergio Roitman | |
The 2009 Copa Petrobras Buenos Aires was a professional tennis tournament played on outdoor clay courts. It was part of the 2009 ATP Challenger Tour. It took place in Buenos Aires, Argentina between 28 September and 4 October 2009.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| ARG | Horacio Zeballos | 58 | 1 |
| ARG | Máximo González | 67 | 2 |
 CHI | Nicolás Massú | 96 | 3 |
| ARG | Juan Ignacio Chela | 111 | 4 |
 ESP | Santiago Ventura | 112 | 5 |
| ARG | Sergio Roitman | 124 | 6 |
| ESP | Rubén Ramírez Hidalgo | 125 | 7 |
 FRA | Laurent Recouderc | 132 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Carlos Berlocq Alejandro Fabbri Andrés Molteni Lionel Noviski Horacio Zeballos def. Gastón Gaudio, 6–2, 3–6, 6–3
Brian Dabul / Sergio Roitman def. Máximo González / Lucas Arnold Ker, 6–4, 7–5
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