Defending champion in the singles was Janko Tipsarević , who took part in the Erste Bank Open that year and was eliminated in the semifinals. This year's winner was Andreas Seppi , who defeated the Brazilian Thomaz Bellucci in three sets with 3: 6, 7: 6, 3 and 6: 3 in the final. For Seppi it was his fourth participation in the finals this year, with two wins. It is the third title on the ATP World Tour in his career . In doubles, František Čermák and Filip Polášek were the defending champions. Čermák took part in the Kremlin Cup with Michal Mertiňák and was seeded number one, while Polášek took part in the Erste Bank Open with Julian Knowle . Čermák and Mertiňák were able to prevail in the final against the unseeded duo Simone Bolelli and Daniele Bracciali 7: 5 and 6: 3.
The field of participants in the single competition consisted of 28 players, that of the doubles competition consisted of 16 pairs. The four top seeded players each received a bye into the second round.
The qualification took place from October 13-15, 2012. Four qualifying places were played, which entitle them to participate in the main draw of the tournament.
At the Kremlin Cup 2012 the following prize money and world ranking points were paid out or credited for reaching the respective round. Players who entered the main field from qualification received the specified qualification points in addition to those for reaching the respective round. Otherwise the amounts are not to be understood as cumulative. The amounts for the double competition apply per player.
Janko Tipsarevic
František Čermák Filip Polášek
Andreas Seppi
Daniel Gimeno Traver (96)
Yevgeny Korolyov
Édouard Roger-Vasselin
Michael Berrer
O. Dolhopolov
I. Karlović
T. Bellucci
J. Janowicz
C. Berlocq
D. Istomin
R. Ram
M. Jaziri
T. Itō
I. Sijsling
