| Junko Sawamatsu | |
| Birth Date: | 1948 4, df=yes |
| Birth Place: | Nishinomiya, Japan |
| Frenchopenresult: | 1R (1968, 1960) |
| Frenchopendoublesresult: | 3R (1969) |
| Wimbledondoublesresult: | QF (1970) |
| Usopendoublesresult: | 1R (1971) |
| Frenchopenmixedresult: | 2R (1970) |
| Wimbledonmixedresult: | 2R (1971) |
| Usopenmixedresult: | 2R (1970) |
is a retired Japanese tennis player.
She competed in singles in the French Open twice and in the U.S. Open once. Competing with her sister Kazuko Sawamatsu in ladies doubles, she reached the quarterfinals of Wimbledon in 1970, losing to eventual champions Rosie Casals and Billie Jean King.
She competed for the Japanese Federation Cup team in 1970 and 1971.
Sawamatsu is the mother of former professional tennis player Naoko Sawamatsu, who peaked at world No.14.