Sumire Tsuji (Japanese: 辻 すみれ, born 29 November 1999) is a Japanese fencer. She represented Japan in the women's team foil event at the 2020 Summer Olympics. Tsuji won a bronze medal in the individual foil at the 2019 Foil Fencing World Cup, a silver medal as part of the Japanese women's team foil team at the 2019 Junior World Fencing Championships., and a gold medal in the team foil at the 2019 Asian Fencing Championships.