Keiko Ikeda

, also known by her married name as , is a Japanese amateur athlete, coach, university professor and sports administrator. She is best known as a gymnast who competed in the 1956 Summer Olympics, in the 1960 Summer Olympics, and in the 1964 Summer Olympics.
She won a gold medal on the balance beam at the 1954 World Gymnastics Championships. She is the only Japanese woman to win a gold medal in this international competition.