| 2011 Caloundra International | |
|---|---|
| Date | 7–13 February |
| Edition | 5th |
| Location | Caloundra, Queensland, Australia |
| Champions | |
| Singles | |
 Grega Žemlja | |
| Doubles | |
 Matthew Ebden / Samuel Groth | |
The 2011 Caloundra International was a professional tennis tournament played on outdoor hard courts. It was part of the 2011 ATP Challenger Tour. It took place in Caloundra, Australia between 7 and 13 February 2011.
| Country | Player | Rank | Seed |
|---|---|---|---|
| AUS | Marinko Matosevic | 142 | 1 |
 CZE | Lukáš Rosol | 143 | 2 |
 ITA | Paolo Lorenzi | 145 | 3 |
| AUS | Carsten Ball | 159 | 4 |
| SLO | Grega Žemlja | 166 | 5 |
| CZE | Jan Hernych | 174 | 6 |
| AUS | Bernard Tomic | 182 | 7 |
| AUS | Matthew Ebden | 201 | 8 |
The following players received wildcards into the singles main draw:
Matthew Barton James Duckworth James Lemke Benjamin Mitchell The following players received a special exempt into the main draw:
The following players received entry from the qualifying draw:
Dayne Kelly
Wu Di 
Yang Tsung-hua 
Daniel Yoo Grega Žemlja def. Bernard Tomic, 7–6(4), 6–3
Matthew Ebden / Samuel Groth def. 
Pavol Červenák / Ivo Klec, 6–3, 3–6, [10–1]
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