Kumiko Okamoto (Japanese: 岡本久美子, born February 19, 1965) is a retired female tennis player from Japan, who represented her native country at the 1988 Summer Olympics in Seoul, South Korea).

In the doubles competition she partnered Etsuko Inoue.

Okamoto 6 singles and doubles finals.

She has won 4 singles titles and 2 doubles titles on the ITF finals.

This biographical article relating to Japanese tennis is a stub.