Hillery is a rare variant of Hillary that was most common in the 1970s and has all but disappeared.
Hillery is predominantly a boy name. It last appears in U.S. records in 1998. Hillery first appears in 1887 and peaked in 1921 (17 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 1998 | 7 | 7 | #11,582 | — |
| 1997 | 7 | — | #11,259 | — |
| 1993 | 11 | — | #7,703 | — |
| 1992 | 22 | — | #4,589 | — |
| 1991 | 31 | — | #3,474 | — |
| 1990 | 15 | — | #5,931 | — |
| 1989 | 14 | — | #5,936 | — |
| 1988 | 20 | — | #4,367 | — |
| 1987 | 21 | — | #4,030 | — |
| 1986 | 16 | — | #4,804 | — |
| 1985 | 21 | — | #3,900 | — |
| 1984 | 27 | — | #3,172 | — |
| 1983 | 21 | — | #4,540 | #6,661 |
| 1982 | 22 | — | #3,688 | — |
| 1981 | 22 | — | #3,657 | — |
| 1980 | 31 | — | #2,895 | — |
| 1979 | 32 | — | #2,748 | — |
| 1978 | 28 | — | #2,891 | — |
| 1977 | 22 | — | #3,414 | — |
| 1976 | 20 | — | #4,439 | #5,194 |
| 1975 | 15 | — | #4,220 | — |
| 1974 | 10 | — | #5,491 | — |
| 1973 | 11 | — | #5,001 | — |
| 1972 | 15 | — | #5,640 | #4,653 |
| 1971 | 18 | — | #3,561 | — |
| 1970 | 17 | — | #4,593 | #5,023 |
| 1969 | 6 | — | #6,936 | — |
| 1968 | 16 | — | #7,412 | #2,645 |
| 1967 | 8 | — | — | #3,095 |
| 1965 | 12 | — | #6,887 | #3,379 |
| 1964 | 7 | — | — | #3,420 |
| 1961 | 8 | — | — | #3,209 |
| 1959 | 6 | — | — | #3,763 |
| 1958 | 5 | — | — | #4,190 |
| 1957 | 5 | — | — | #4,230 |
| 1955 | 7 | — | — | #3,318 |
| 1954 | 8 | — | — | #3,046 |
| 1953 | 10 | — | — | #2,608 |
| 1952 | 11 | — | — | #2,430 |
| 1951 | 12 | — | — | #2,300 |
| 1950 | 9 | — | — | #2,659 |
| 1948 | 11 | — | #5,557 | #3,467 |
| 1947 | 11 | — | — | #2,431 |
| 1946 | 7 | — | — | #3,018 |
| 1945 | 10 | — | — | #2,316 |
| 1944 | 6 | — | — | #3,272 |
| 1943 | 13 | — | — | #2,113 |
| 1941 | 5 | — | — | #3,737 |
| 1940 | 6 | — | — | #3,273 |
| 1939 | 9 | — | — | #2,526 |
| 1938 | 6 | — | — | #3,326 |
| 1937 | 6 | — | — | #3,314 |
| 1936 | 13 | — | — | #2,002 |
| 1935 | 11 | — | — | #2,319 |
| 1934 | 11 | — | — | #2,326 |
| 1933 | 9 | — | — | #2,630 |
| 1932 | 10 | — | — | #2,533 |
| 1931 | 9 | — | — | #2,749 |
| 1930 | 13 | — | — | #2,233 |
| 1929 | 6 | — | — | #3,731 |
| 1928 | 15 | — | — | #2,095 |
| 1927 | 9 | — | — | #3,014 |
| 1926 | 8 | — | — | #3,249 |
| 1925 | 9 | — | — | #3,019 |
| 1924 | 7 | — | — | #3,651 |
| 1923 | 14 | — | — | #2,271 |
| 1922 | 12 | — | — | #2,555 |
| 1921 | 17 | — | — | #2,018 |
| 1920 | 10 | — | — | #2,856 |
| 1919 | 12 | — | — | #2,425 |
| 1918 | 11 | — | — | #2,614 |
| 1917 | 13 | — | — | #2,226 |
| 1916 | 10 | — | — | #2,626 |
| 1915 | 13 | — | — | #2,111 |
| 1914 | 9 | — | — | #2,346 |
| 1913 | 7 | — | — | #2,370 |
| 1912 | 7 | — | — | #2,135 |
| 1904 | 5 | — | — | #1,291 |
| 1898 | 5 | — | — | #1,210 |
| 1887 | 5 | — | — | #992 |