The 2009 Oberstaufen Cup was a professional tennis tournament played on outdoor red clay courts.

This was the eighteenth edition of the tournament which is part of the 2009 ATP Challenger Tour.

The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: Robin Vik def.

Jan Minář, 6–1, 6–2 Dieter Kindlmann / Marcel Zimmermann def.

Michael Berrer / Philipp Oswald, 6–4, 2–6, [10–4]