Hilery is a very rare variant of Hillary that was most common in the 1920s and has all but disappeared.
Hilery is predominantly a boy name. It last appears in U.S. records in 1992. Hilery first appears in 1916 and peaked in 1923 (9 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 1992 | 8 | — | #9,806 | — |
| 1991 | 5 | — | #13,953 | — |
| 1986 | 5 | — | #11,570 | — |
| 1980 | 6 | — | #9,501 | — |
| 1978 | 6 | — | #8,919 | — |
| 1975 | 6 | — | #8,349 | — |
| 1942 | 6 | — | — | #3,367 |
| 1941 | 5 | — | — | #3,736 |
| 1934 | 9 | — | — | #2,644 |
| 1928 | 6 | — | — | #3,911 |
| 1926 | 6 | — | — | #3,923 |
| 1923 | 9 | — | — | #3,054 |
| 1922 | 7 | — | — | #3,677 |
| 1921 | 6 | — | — | #4,079 |
| 1920 | 7 | — | — | #3,634 |
| 1919 | 5 | — | — | #4,439 |
| 1916 | 7 | — | — | #3,328 |