| Date: | August 31 – September 6 |
| Edition: | 11th |
| Location: | Freudenstadt, Germany |
| Champs: |  Jan Hájek |
| Champd: | Jan Hájek / Dušan Karol |
The 2009 Black Forest Open was a professional tennis tournament played on outdoor red clay courts. It was the eleventh edition of the tournament which was part of the 2009 ATP Challenger Tour. It took place in Freudenstadt, Germany between 31 August and 6 September 2009.
| Nationality | Player | Ranking* | Seeding | |
|---|---|---|---|---|
| Florian Mayer | 113 | 1 | ||
| Daniel Brands | 126 | 2 | ||
| Czech Republic | Jan Hájek | 147 | 3 | |
 France | Laurent Recouderc | 150 | 4 | |
| Czech Republic | Jiří Vaněk | 164 | 5 | |
 United Kingdom | James Ward | 202 | 6 | |
| Benedikt Dorsch | 209 | 7 | ||
| France | Thierry Ascione | 210 | 8 |
The following players received wildcards into the singles main draw:
The following players received special exemption into the singles main draw:
The following players received entry from the qualifying draw:
Louk Sorensen
Clint ThomsonSee main article: 2009 Black Forest Open – Singles. Jan Hájek def. Laurent Recouderc, 2–6, 6–3, 7–6(5)
See main article: 2009 Black Forest Open – Doubles. Jan Hájek / Dušan Karol def. 
Martin Kližan / 
Adil Shamasdin, 4–6, 6–4, [10–5]
