The 2015 Dunlop Srixon World Challenge was a professional tennis tournament played on indoor carpet courts.

It was the eighth edition of the tournament and part of the 2015 ATP Challenger Tour and 2015 ITF Women's Circuit, offering a total of $75,000+H (ITF) and $40,000+H (ATP) in prize money.

It took place in Toyota, Japan, on 23–29 November 2015.

The following players received wildcards into the singles main draw: The following player received protected ranking entry to the main draw: The following players received entry from the qualifying draw: The following players received wildcards into the singles main draw: The following players received entry from the qualifying draw: