Valeriy Vasylovych Dvoynikov (Ukrainian: ??????? ?????????? ?????????, born 4 May 1950 in Ozersk) is a Ukrainian judoka who competed for the Soviet Union in the 1976 Summer Olympics.In 1976 he won the silver medal in the middleweight.
He was also vice world champion in Vienna (1975) and 4 times European champion.
Isao Inokuma said that "Among the foreign judoists with brilliant shin-gi-tai (spirit, skill, and power) are the Soviet Union's Nevzorov, the victor in the light-middleweight class in the Montreal Olympics, Dvoinikov of the Soviet Union, who was runner-up in the middleweight division at the same Olympics, and Lorentz of East Germany, who won the 95-kilograms-and-under class in the Jigoro Kano Cup International Judo Tournament held in Tokyo in 1978".