Vasiliki Millousi (; born 4 May 1984 in Athens) is a Greek retired artistic gymnast. She is a ten-time World Cup Series medalist on beam and has represented Greece at the 2000, 2012 Olympics and 2016 Olympics. She occasionally competes in the all-around but specializes in the balance beam. More recently, she was a beam finalist at the 2011 European Artistic Gymnastics Championships. She also won the beam final at the 2012 Artistics Gymnastics Olympic Test Event which qualified her for the Olympics 2012 in London.