The 2012 Caloundra International was a professional tennis tournament played on hard courts. It was the sixth edition of the tournament which was part of the 2012 ATP Challenger Tour. It took place in Caloundra, Australia between 6 and 12 February 2012.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
| Lu Yen-hsun | 65 | 1 | ||
 Australia | Marinko Matosevic | 200 | 2 | |
| Australia | James Duckworth | 205 | 3 | |
| Australia | Greg Jones | 216 | 4 | |
| Australia | Benjamin Mitchell | 221 | 5 | |
 Slovakia | Kamil Čapkovič | 237 | 6 | |
| Raven Klaasen | 244 | 7 | ||
| Sebastian Rieschick | 257 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Maverick Banes Matthew Barton Nick Lindahl Nima RoshanSee main article: 2012 Caloundra International – Singles. Marinko Matosevic def. Greg Jones, 6–0, 6–2
See main article: 2012 Caloundra International – Doubles. John Peers / John-Patrick Smith def. 
John Paul Fruttero / Raven Klaasen, 7–6(7–5), 6–4