The 2011 Bauer Watertechnology Cup was a professional tennis tournament played on carpet courts.

It was the 15th edition of the tournament and was part of the 2011 ATP Challenger Tour.

It took place in Eckental, Germany between 31 October 2011 and 6 November 2011.

The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: The following players received entry as a "lucky loser" into the singles main draw: Rajeev Ram def.

Karol Beck, 6–4, 6–2 Andre Begemann / Alexander Kudryavtsev def.