| Sumiko Watanabe | |
| Birth Name: | 渡辺 すみ子 |
| Nationality: | Japanese |
| Sport: | Sprinting |
| Event: | 100 m |
| Pb: | 12.2 (1932) |
| Birth Date: | 28 November 1916 |
| Birth Place: | Nagoya, Japan |
was a Japanese sprinter. Aged 15 she competed in the 100 m and 4 × 100 m event at the 1932 Summer Olympics and placed fifth in the relay.[1]
In 1935 Watanabe married the founder of Chukyo University Seimei Umemura. After that she changed her last name to Umemura (梅村) and taught physical education at Chukyo University.