There are multiple characters with the first name of Viktor:
- Viktor Durasov, the Commissar from Call of Duty: Finest Hour.
- Viktor Gavrilov, the tanker from Call of Duty: Finest Hour.
- Viktor (Call of Duty 4), the Ultranationalist soldier from Call of Duty 4: Modern Warfare.
- Viktor Reznov, the Russian Sergeant in Call of Duty: World at War and Russian ally in Call of Duty: Black Ops.
- Viktor (Modern Warfare 2), one of Vladimir Makarov's henchman in Call of Duty: Modern Warfare 2.
- Viktor "Volk" Khristenko, a Russian terrorist working for Makarov in Call of Duty: Modern Warfare 3.
- Victor, an alternate spelling for Viktor.