Liezel Huber and Bob Bryan were the defending champions, but they lost to Melanie Oudin and Jack Sock in the second round. Oudin and Sock went on to win the title, defeating Gisela Dulko and Eduardo Schwank in the final 7–6(7–4), 4–6, [10–8]. Seeds Draw Finals Top half Bottom half External links Main Draw 2011 US Open – Doubles draws and results at the International Tennis Federation Mixed Doubles US Open - Mixed Doubles US Open - Mixed Doubles US Open (tennis) by year – Mixed doubles