The 2011 USTA Challenger of Oklahoma was a professional tennis tournament played on hard courts. It was the third edition of the tournament which was part of the 2011 ATP Challenger Tour. It took place in Tulsa, United States between 12 and 18 September 2011.
Singles main-draw entrants
Seeds
1 Rankings are as of August 29, 2011.
Other entrants
The following players received wildcards into the singles main draw: Jeff Dadamo Michael Shabaz John-Patrick Smith Jack Sock
The following players received entry from the qualifying draw: Andrei Dăescu Michael McClune Costin Pavăl Chris Wettengel