Mozhaev or Mozhayev () is a Russian masculine surname, its feminine counterpart is Mozhaeva or Mozhayeva. It may refer to
Aleksandr Mozhayev (born 1958), Russian fencer Alexei Mozhaev (1918–1994), Russian painter, graphic artist and art teacher Boris Mozhayev (1923–1996), Russian author, dramatist, script-writer and editor Sergey Mozhaev (born 1988), Russian freestyle skier