The 2009 BMW Ljubljana Open was a professional tennis tournament played on outdoor red clay courts. It was the eighteenth edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Ljubljana, Slovenia between 21 and 27 September 2009.
| Country | Player | Rank1 | Seed | |
|---|---|---|---|---|
 Italy | Paolo Lorenzi | 123 | 1 | |
| Roko Karanušić | 131 | 2 | ||
 France | Stéphane Robert | 135 | 3 | |
| Blaž Kavčič | 149 | 4 | ||
 Serbia | Ilija Bozoljac | 163 | 5 | |
| Ivan Dodig | 168 | 6 | ||
| Italy | Tomas Tenconi | 183 | 7 | |
| Grega Žemlja | 185 | 8 |
The following players received wildcards into the singles main draw:
The following player received a Special Exempt into the singles main draw:
The following players received entry from the qualifying draw:
See main article: 2009 BMW Ljubljana Open – Singles. Paolo Lorenzi def. Grega Žemlja, 1–6, 7–6(4), 6–2
See main article: 2009 BMW Ljubljana Open – Doubles. 
Jamie Delgado / Jamie Murray def. Stéphane Robert / Simone Vagnozzi, 6–3, 6–3
