(藤沢 利喜太郎)
Rikitarō Fujisawa (Japanese: 藤沢 利喜太郎, Fujisawa Rikitarō; 12 October 1861 – 23 December 1933) was a Japanese mathematician. During the Meiji era he was instrumental in reforming mathematics education in Japan and establishing the ideas of European mathematics in Japan.