Hiroko is a rare girls' name that was most common in the 1910s and has all but disappeared.
Hiroko is a girl name. It last appears in U.S. records in 1992. Hiroko was first reported in SSA data in 1914 and peaked in 1919 (19 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 1992 | 5 | — | #14,058 |
| 1989 | 9 | — | #8,282 |
| 1988 | 8 | — | #8,682 |
| 1985 | 5 | — | #11,263 |
| 1984 | 6 | — | #9,536 |
| 1982 | 9 | — | #7,084 |
| 1981 | 8 | — | #7,646 |
| 1980 | 5 | — | #10,947 |
| 1977 | 5 | — | #10,170 |
| 1976 | 5 | — | #9,817 |
| 1975 | 5 | — | #9,577 |
| 1971 | 6 | — | #7,721 |
| 1945 | 6 | — | #4,232 |
| 1942 | 5 | — | #4,911 |
| 1940 | 9 | — | #3,065 |
| 1939 | 9 | — | #3,004 |
| 1937 | 5 | — | #4,522 |
| 1936 | 7 | — | #3,519 |
| 1935 | 12 | — | #2,483 |
| 1934 | 11 | — | #2,637 |
| 1933 | 10 | — | #2,764 |
| 1932 | 13 | — | #2,417 |
| 1931 | 9 | — | #3,075 |
| 1930 | 9 | — | #3,181 |
| 1929 | 12 | — | #2,643 |
| 1928 | 8 | — | #3,575 |
| 1927 | 11 | — | #2,934 |
| 1926 | 13 | — | #2,624 |
| 1925 | 14 | — | #2,543 |
| 1924 | 9 | — | #3,497 |
| 1923 | 13 | — | #2,644 |
| 1922 | 8 | — | #3,810 |
| 1921 | 11 | — | #3,028 |
| 1920 | 10 | — | #3,207 |
| 1919 | 19 | — | #1,948 |
| 1918 | 6 | — | #4,534 |
| 1916 | 8 | — | #3,387 |
| 1914 | 5 | — | #3,873 |