The 2011 Delray Beach International Tennis Championships was a professional tennis tournament played on hard courts. It was the 19th edition of the tournament which was part of the World Tour 250 series of the 2011 ATP World Tour. It took place in Delray Beach, United States between 21 and 27 February 2011. Unseeded Juan Martín del Potro, who entered on a Special Exempt, won the singles title.
The following players received wildcards into the singles main draw:
The following entrant has been granted a Special Exemption into the 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:
Juan Martín del Potro defeated 
Janko Tipsarević, 6–4, 6–4
Scott Lipsky / Rajeev Ram defeated 
Christopher Kas / 
Alexander Peya, 4–6, 6–4, [10–3]
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