Kunio is a very rare boys' name that was most common in the 1920s and has all but disappeared.
Kunio is a boy name. It last appears in U.S. records in 1940. Kunio first appears in 1917 and peaked in 1924 (10 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1940 | 5 | — | #3,718 |
| 1931 | 7 | — | #3,254 |
| 1929 | 6 | — | #3,765 |
| 1927 | 7 | — | #3,641 |
| 1925 | 9 | — | #3,035 |
| 1924 | 10 | — | #2,932 |
| 1923 | 9 | — | #3,070 |
| 1922 | 6 | — | #4,090 |
| 1921 | 7 | — | #3,717 |
| 1920 | 7 | — | #3,665 |
| 1919 | 5 | — | #4,503 |
| 1918 | 7 | — | #3,543 |
| 1917 | 6 | — | #3,773 |