Konstantin Nikolayevich Zaytsev (; born 16 December 1983) is a Russian professional football coach and a former player. He is an assistant coach with FC Yenisey Krasnoyarsk. He also holds Ukrainian citizenship as Kostyantyn Mykolayovych Zaytsev ().
He played 8 seasons in the Russian Football National League for FC SKA-Energiya Khabarovsk, FC Vityaz Podolsk and FC Mordovia Saransk.