The 2011 BRD Năstase Țiriac Trophy was a tennis tournament played on outdoor clay courts.

It was the 19th edition of the BRD Năstase Țiriac Trophy tournament, and was part of the ATP World Tour 250 Series of the 2011 ATP World Tour.

It was held in Bucharest, Romania, 17–23 September 2011.

The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: Florian Mayer defeated Pablo Andújar, 6–3, 6–1 Daniele Bracciali / Potito Starace defeated Julian Knowle / David Marrero, 3–6, 6–4, [10–8].