Kiyo is a very rare name used for both girls and boys that peaked in 1920 and has grown less common since.
Kiyo is predominantly a girl name. It last appears in U.S. records in 2025. Kiyo first appears in 1914 and peaked in 1920 (13 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 8 | 8 | — | #9,352 |
| 2024 | 5 | 5 | #16,558 | — |
| 2022 | 7 | 7 | — | #10,388 |
| 2021 | 5 | 5 | — | #13,211 |
| 2020 | 5 | 5 | — | #13,195 |
| 1993 | 5 | — | #14,641 | — |
| 1926 | 6 | — | #4,578 | — |
| 1925 | 7 | — | #4,226 | — |
| 1924 | 6 | — | #4,760 | — |
| 1923 | 7 | — | #4,176 | — |
| 1922 | 7 | — | #4,237 | — |
| 1921 | 8 | — | #3,849 | — |
| 1920 | 13 | — | #2,667 | — |
| 1918 | 11 | — | #2,914 | — |
| 1917 | 7 | — | #3,910 | — |
| 1916 | 7 | — | #3,737 | — |
| 1915 | 8 | — | #3,281 | — |
| 1914 | 10 | — | #2,347 | — |