Suzuko Seki

, nee , is a Japanese gymnast. She competed in seven events at the 1956 Summer Olympics, and wrote an article entitled Deep Emotions from the Hinomaru, describing her thoughts on Japanese identity represented by the waving of Japanese flags at the Olympics just a few short years after the end of the Second World War.

Shintani was due to participate in the 1960 Summer Olympics in Rome for the Japanese contingent, but was prevented from doing so by a herniated disc that caused paralysis in her right leg. Instead, she went on to study in the United States, graduating with a master's degree from Northwestern State University. In 1970, she published a book entitled the Basics of Women's Gymnastics (女子体操競技の基礎).