The 2015 Kremlin Cup was a tennis tournament played on indoor hard courts. It was the 26th edition of the Kremlin Cup for the men and the 20th edition for the women. The tournament was part of the ATP World Tour 250 Series of the 2015 ATP World Tour, and of the Premier Series of the 2015 WTA Tour. It was held at the Olympic Stadium in Moscow, Russia, from 19 October through 25 October 2015.
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following pairs received wildcards into the doubles main draw:
The following players received wildcards into the singles main draw:
The following players received entry from the qualifying draw:
The following players received entry as lucky losers:
The following pairs received wildcards into the doubles main draw: