See main article: 2011 Delray Beach International Tennis Championships. Ernests Gulbis was the defending champion but decided to participate in the 2011 Dubai Tennis Championships instead.
Juan Martín del Potro won this tournament, by defeating Janko Tipsarević 6–4, 6–4 in the final.
See main article: 2011 Delray Beach International Tennis Championships – Singles qualifying.