| Koyo Hirai | |
 Koyo Hirai in September 2020 at age 111. | |
| Birth: | 10 March 1909 Japan |
| Age: | 112 years, 97 days |
| Country: |  JPN
|
| Unvalidated | |
Koyo Hirai (born 10 March 1909) is a Japanese supercentenarian whose age is currently unvalidated by Gerontology Research Group (GRG).
Biography
Koyo Hirai was born in Japan on 10 March 1909. She became a supercentenarian on 10 March 2019.
Hirai currently lives in Hokkaido, Japan at the age of 112 years, 97 days.
References
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