Seamus is an uncommon boys' name that peaked in 2008 and has grown less common since.
Seamus is a boy name. In 2025 it ranked #1,280 for boy births in the United States (and #2,652 across all names), given to 154 babies. Seamus first appears in 1957 and peaked in 2008 (298 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 154 | 154 | #1,280 |
| 2024 | 125 | 125 | #1,457 |
| 2023 | 137 | 137 | #1,366 |
| 2022 | 143 | 143 | #1,319 |
| 2021 | 158 | 158 | #1,223 |
| 2020 | 161 | 161 | #1,195 |
| 2019 | 197 | 197 | #1,046 |
| 2018 | 178 | 178 | #1,106 |
| 2017 | 211 | 211 | #979 |
| 2016 | 218 | 218 | #953 |
| 2015 | 221 | 221 | #946 |
| 2014 | 239 | 239 | #903 |
| 2013 | 247 | 247 | #864 |
| 2012 | 259 | 259 | #838 |
| 2011 | 258 | 258 | #837 |
| 2010 | 240 | 240 | #875 |
| 2009 | 276 | 276 | #808 |
| 2008 | 298 | 298 | #753 |
| 2007 | 296 | 296 | #752 |
| 2006 | 244 | 244 | #833 |
| 2005 | 254 | 254 | #776 |
| 2004 | 233 | 233 | #782 |
| 2003 | 248 | 248 | #735 |
| 2002 | 215 | 215 | #802 |
| 2001 | 188 | 188 | #857 |
| 2000 | 194 | 194 | #828 |
| 1999 | 191 | 191 | #804 |
| 1998 | 164 | 164 | #891 |
| 1997 | 164 | — | #863 |
| 1996 | 157 | — | #878 |
| 1995 | 130 | — | #977 |
| 1994 | 111 | — | #1,062 |
| 1993 | 88 | — | #1,203 |
| 1992 | 83 | — | #1,244 |
| 1991 | 78 | — | #1,272 |
| 1990 | 75 | — | #1,285 |
| 1989 | 58 | — | #1,450 |
| 1988 | 55 | — | #1,422 |
| 1987 | 50 | — | #1,462 |
| 1986 | 44 | — | #1,530 |
| 1985 | 54 | — | #1,316 |
| 1984 | 47 | — | #1,393 |
| 1983 | 31 | — | #1,810 |
| 1982 | 49 | — | #1,359 |
| 1981 | 59 | — | #1,198 |
| 1980 | 50 | — | #1,338 |
| 1979 | 41 | — | #1,486 |
| 1978 | 47 | — | #1,349 |
| 1977 | 47 | — | #1,333 |
| 1976 | 32 | — | #1,671 |
| 1975 | 36 | — | #1,498 |
| 1974 | 34 | — | #1,515 |
| 1973 | 28 | — | #1,691 |
| 1972 | 26 | — | #1,760 |
| 1971 | 24 | — | #1,856 |
| 1970 | 17 | — | #2,277 |
| 1969 | 14 | — | #2,400 |
| 1968 | 16 | — | #2,094 |
| 1967 | 19 | — | #1,844 |
| 1966 | 14 | — | #2,203 |
| 1965 | 18 | — | #1,907 |
| 1964 | 12 | — | #2,527 |
| 1963 | 6 | — | #3,984 |
| 1962 | 8 | — | #3,270 |
| 1961 | 6 | — | #4,001 |
| 1960 | 9 | — | #3,042 |
| 1959 | 10 | — | #2,792 |
| 1958 | 6 | — | #3,871 |
| 1957 | 9 | — | #2,994 |