The baby name Seneca appears in baby name data for the United States from 1976 to 2018. It was most popular in 1977 with 209 babies given the name.
In the later years of this period, Seneca has become less common than it once was.
| Year | Count |
|---|---|
| 1976 | 76 |
| 1977 | 209 |
| 1978 | 104 |
| 1979 | 81 |
| 1980 | 6 |
| 1980 | 165 |
| 1981 | 44 |
| 1982 | 14 |
| 1982 | 37 |
| 1983 | 22 |
| 1984 | 5 |
| 1995 | 17 |
| 1997 | 5 |
| 1998 | 14 |
| 2000 | 10 |
| 2003 | 5 |
| 2004 | 22 |
| 2015 | 5 |
| 2016 | 15 |
| 2016 | 12 |
| 2018 | 5 |