Ryzhikov or Ryzhykov (Russian: Рыжиков; Ukrainian: Рижиков) is a Russian masculine surname, its feminine counterpart is Ryzhikova or Ryzhykova. The surname may refer to:

Andrei Ryzhikov (born 1988), Russian footballer Anna Ryzhykova (born 1989), Ukrainian hurdler Sergey Ryzhikov (disambiguation), multiple people