| 2009 Calabasas Pro Tennis Championships | |
|---|---|
| Date | 19–25 October |
| Edition | 9th |
| Location | Calabasas, California, United States |
| Champions | |
| Singles | |
 Donald Young | |
| Doubles | |
 Santiago González /  Simon Stadler | |
The 2009 Calabasas Pro Tennis Championships was a professional tennis tournament played on outdoor hard courts. It was the ninth edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Calabasas, California, United States between 19 and 25 October 2009.
| Country | Player | Rank1 | Seed |
|---|---|---|---|
| USA | Kevin Kim | 95 | 1 |
| USA | Michael Russell | 96 | 2 |
| USA | Jesse Levine | 104 | 3 |
 COL | Santiago Giraldo | 108 | 4 |
| USA | Taylor Dent | 111 | 5 |
 CRO | Roko Karanušić | 133 | 6 |
 SLO | Grega Žemlja | 155 | 7 |
| COL | Carlos Salamanca | 159 | 8 |
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
Donald Young def. Michael Russell, 7–6(4), 6–1
Santiago González / Simon Stadler def. 
Treat Conrad Huey / 
Harsh Mankad, 6–2, 5–7, [10–4]
