Aja is an uncommon girls' name that peaked in 1978 and has since faded.
Aja is predominantly a girl name. In 2025 it ranked #3,461 for girl births in the United States (and #6,102 across all names), given to 44 babies. Aja first appears in 1968 and peaked in 1978 (491 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 44 | 44 | #3,461 | — |
| 2024 | 67 | 67 | #2,608 | — |
| 2023 | 58 | 58 | #2,892 | — |
| 2022 | 61 | 61 | #2,792 | — |
| 2021 | 60 | 60 | #2,818 | — |
| 2020 | 91 | 91 | #2,036 | — |
| 2019 | 67 | 67 | #2,595 | — |
| 2018 | 82 | 82 | #2,240 | — |
| 2017 | 105 | 105 | #1,989 | #10,824 |
| 2016 | 65 | 65 | #2,668 | — |
| 2015 | 84 | 84 | #2,237 | — |
| 2014 | 86 | 86 | #2,194 | — |
| 2013 | 80 | 80 | #2,308 | — |
| 2012 | 100 | 100 | #1,955 | — |
| 2011 | 152 | 152 | #1,470 | — |
| 2010 | 137 | 137 | #1,590 | — |
| 2009 | 133 | 133 | #1,676 | — |
| 2008 | 144 | 144 | #1,583 | — |
| 2007 | 165 | 165 | #1,468 | #10,965 |
| 2006 | 152 | 152 | #1,462 | — |
| 2005 | 166 | 166 | #1,368 | #8,317 |
| 2004 | 194 | 194 | #1,167 | — |
| 2003 | 209 | 209 | #1,067 | — |
| 2002 | 226 | 226 | #977 | — |
| 2001 | 209 | 209 | #1,054 | #9,267 |
| 2000 | 228 | 228 | #939 | — |
| 1999 | 194 | 194 | #1,047 | — |
| 1998 | 198 | 198 | #1,033 | #8,493 |
| 1997 | 206 | — | #956 | — |
| 1996 | 246 | — | #822 | — |
| 1995 | 232 | — | #843 | — |
| 1994 | 216 | — | #888 | — |
| 1993 | 207 | — | #920 | — |
| 1992 | 200 | — | #961 | — |
| 1991 | 230 | — | #868 | — |
| 1990 | 202 | — | #939 | — |
| 1989 | 205 | — | #908 | #7,930 |
| 1988 | 203 | — | #868 | — |
| 1987 | 164 | — | #993 | #6,101 |
| 1986 | 181 | — | #900 | — |
| 1985 | 167 | — | #963 | #5,161 |
| 1984 | 181 | — | #867 | #5,578 |
| 1983 | 249 | — | #681 | — |
| 1982 | 263 | — | #674 | — |
| 1981 | 267 | — | #668 | #5,487 |
| 1980 | 320 | — | #597 | #4,141 |
| 1979 | 362 | — | #526 | — |
| 1978 | 510 | — | #412 | #2,376 |
| 1977 | 14 | — | #4,656 | — |
| 1972 | 7 | — | #6,569 | — |
| 1969 | 8 | — | #5,463 | — |
| 1968 | 7 | — | #5,646 | — |