The 2011 AON Open Challenger was a professional tennis tournament played on clay courts. It was the ninth edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Genoa, Italy between 5 and 11 September 2011.
| 2011 AON Open Challenger | |
|---|---|
| Date | 5–11 September |
| Edition | 9th |
| Location | Genoa, Italy |
| Champions | |
| Singles | |
 Martin Kližan | |
| Doubles | |
 Dustin Brown /  Horacio Zeballos | |
Singles main-draw entrants edit
Seeds edit
| Country | Player | Rank1 | Seed |
|---|---|---|---|
 ESP
|
Pablo Andújar | 45 | 1 |
| ARG
|
Carlos Berlocq | 74 | 2 |
 POR
|
Rui Machado | 79 | 3 |
 ITA
|
Filippo Volandri | 85 | 4 |
 KAZ
|
Andrey Golubev | 98 | 5 |
| SVK
|
Martin Kližan | 103 | 6 |
| ARG
|
Diego Junqueira | 104 | 7 |
| POR
|
Frederico Gil | 106 | 8 |
- 1 Rankings are as of August 29, 2011.
Other entrants edit
The following players received wildcards into the singles main draw:
Pablo Andújar
Andea Basso- Edoardo Eremin
- Francesco Picco
The following players received entry from the qualifying draw:
Benjamin Balleret
Guillermo Durán- Thomas Fabbiano
Michael Linzer
The following players received entry as a lucky loser into the singles main draw:
- Enrico Burzi
- Renzo Olivo
Champions edit
Singles edit
Martin Kližan def. Leonardo Mayer, 6–3, 6–1
Doubles edit
Dustin Brown / Horacio Zeballos def. 
Jordan Kerr / 
Travis Parrott, 6–2, 7–5