Kumiko Okada (岡田 久美子, Okada Kumiko, born 17 October 1991) is a female racewalker from Japan.

She competed in the women's 20 kilometres walk event at the 2015 World Championships in Athletics in Beijing, China.

[1] She competed in the women's 20 kilometres walk at the 2022 World Athletics Championships held in Eugene, Oregon, United States.

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