Chiyoko is a rare girls' name that was most common in the 1920s and has all but disappeared.
Chiyoko is a girl name. It last appears in U.S. records in 1937. Chiyoko was first reported in SSA data in 1909 and peaked in 1923 (41 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1937 | 5 | — | #4,352 |
| 1935 | 5 | — | #4,312 |
| 1932 | 8 | — | #3,321 |
| 1931 | 10 | — | #2,793 |
| 1930 | 11 | — | #2,714 |
| 1929 | 10 | — | #2,954 |
| 1928 | 16 | — | #2,205 |
| 1927 | 32 | — | #1,429 |
| 1926 | 20 | — | #1,943 |
| 1925 | 27 | — | #1,615 |
| 1924 | 37 | — | #1,334 |
| 1923 | 41 | — | #1,215 |
| 1922 | 31 | — | #1,472 |
| 1921 | 40 | — | #1,222 |
| 1920 | 29 | — | #1,518 |
| 1919 | 35 | — | #1,298 |
| 1918 | 34 | — | #1,304 |
| 1917 | 38 | — | #1,163 |
| 1916 | 25 | — | #1,491 |
| 1915 | 33 | — | #1,201 |
| 1914 | 13 | — | #1,917 |
| 1913 | 12 | — | #1,792 |
| 1912 | 13 | — | #1,550 |
| 1911 | 6 | — | #2,243 |
| 1910 | 8 | — | #1,799 |
| 1909 | 5 | — | #2,268 |