Seneca is an uncommon name used for both girls and boys that peaked in 1977 and has since faded.
Seneca is predominantly a girl name. In 2025 it ranked #4,343 among girls (33) and #5,808 among boys (16) — overall #5,734 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 49 | 49 | #4,343 | #5,808 |
| 2024 | 46 | 46 | #5,275 | #4,853 |
| 2023 | 42 | 42 | #5,105 | #5,878 |
| 2022 | 49 | 49 | #4,777 | #4,989 |
| 2021 | 49 | 49 | #4,005 | #7,029 |
| 2020 | 51 | 51 | #4,150 | #5,422 |
| 2019 | 38 | 38 | #7,664 | #4,453 |
| 2018 | 58 | 58 | #4,227 | #4,328 |
| 2017 | 47 | 47 | #5,316 | #4,571 |
| 2016 | 63 | 63 | #4,419 | #3,667 |
| 2015 | 51 | 51 | #4,394 | #5,254 |
| 2014 | 48 | 48 | #5,010 | #4,837 |
| 2013 | 49 | 49 | #4,868 | #4,769 |
| 2012 | 41 | 41 | #4,817 | #7,462 |
| 2011 | 48 | 48 | #4,662 | #5,392 |
| 2010 | 58 | 58 | #4,716 | #3,885 |
| 2009 | 66 | 66 | #4,004 | #3,898 |
| 2008 | 66 | 66 | #3,996 | #4,015 |
| 2007 | 81 | 81 | #3,968 | #2,914 |
| 2006 | 86 | 86 | #3,217 | #3,210 |
| 2005 | 68 | 68 | #3,796 | #3,439 |
| 2004 | 71 | 71 | #3,557 | #3,357 |
| 2003 | 71 | 71 | #3,284 | #3,510 |
| 2002 | 60 | 60 | #4,366 | #3,007 |
| 2001 | 65 | 65 | #3,536 | #3,307 |
| 2000 | 67 | 67 | #3,583 | #2,980 |
| 1999 | 42 | 42 | #4,181 | #4,986 |
| 1998 | 55 | 55 | #3,215 | #4,378 |
| 1997 | 68 | — | #3,146 | #2,669 |
| 1996 | 46 | — | #3,811 | #3,988 |
| 1995 | 62 | — | #2,449 | #6,325 |
| 1994 | 52 | — | #2,982 | #5,066 |
| 1993 | 39 | — | #3,860 | #5,290 |
| 1992 | 33 | — | #4,204 | #6,589 |
| 1991 | 36 | — | #4,028 | #5,444 |
| 1990 | 49 | — | #3,280 | #3,935 |
| 1989 | 35 | — | #4,487 | #3,991 |
| 1988 | 39 | — | #3,564 | #4,120 |
| 1987 | 31 | — | #5,034 | #3,313 |
| 1986 | 44 | — | #4,693 | #2,147 |
| 1985 | 55 | — | #3,391 | #2,007 |
| 1984 | 71 | — | #2,832 | #1,575 |
| 1983 | 81 | — | #3,525 | #1,199 |
| 1982 | 101 | — | #2,319 | #1,226 |
| 1981 | 124 | — | #2,366 | #1,008 |
| 1980 | 198 | — | #2,059 | #724 |
| 1979 | 147 | — | #2,514 | #833 |
| 1978 | 154 | — | #2,424 | #785 |
| 1977 | 219 | — | #2,296 | #633 |
| 1976 | 131 | — | #3,079 | #808 |
| 1975 | 22 | — | #4,316 | #4,703 |
| 1974 | 11 | — | #5,276 | — |
| 1973 | 8 | — | #6,532 | — |
| 1972 | 6 | — | #8,038 | — |
| 1971 | 7 | — | #7,208 | — |
| 1961 | 5 | — | #7,374 | — |
| 1960 | 16 | — | #3,188 | — |
| 1959 | 8 | — | #4,968 | — |
| 1958 | 5 | — | #6,854 | — |
| 1957 | 25 | — | #2,266 | — |
| 1956 | 10 | — | #4,118 | — |