| Team: | Izhstal Izhevsk |
| Former Teams: | Salavat Yulaev Ufa Yunost Minsk Spartak Moscow Ak Bars Kazan Neftekhimik Nizhnekamsk Dynamo Moscow HC Ugra Torpedo Nizhny Novgorod Avtomobilist Yekaterinburg |
| League: | VHL |
| Position: | Left Wing |
| Shoots: | Left |
| Height Ft: | 6 |
| Height In: | 1 |
| Weight Lb: | 196 |
| Birth Date: | June 9, 1983 |
| Birth Place: | Izhevsk, Soviet Union |
| Career Start: | 2005 |
Kirill Leonidovich Knyazev (Russian: Кирилл Леонидович Князев; born June 9, 1983) is a Russian professional ice hockey player, who currently plays for Izhstal Izhevsk in the Supreme Hockey League (VHL). He is a veteran of 331 games in the Kontinental Hockey League (KHL) spanning 7 clubs.