Sir is an uncommon boys' name that peaked in 2021 and remains in steady use.
Sir is a boy name. In 2025 it ranked #2,179 for boy births in the United States (and #4,670 across all names), given to 66 babies. Sir first appears in 1967 and peaked in 2021 (123 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 66 | 66 | #2,179 |
| 2024 | 80 | 80 | #1,969 |
| 2023 | 84 | 84 | #1,892 |
| 2022 | 96 | 96 | #1,746 |
| 2021 | 123 | 123 | #1,467 |
| 2020 | 110 | 110 | #1,524 |
| 2019 | 111 | 111 | #1,531 |
| 2018 | 111 | 111 | #1,537 |
| 2017 | 56 | 56 | #2,338 |
| 2016 | 51 | 51 | #2,511 |
| 2015 | 55 | 55 | #2,383 |
| 2014 | 58 | 58 | #2,293 |
| 2013 | 55 | 55 | #2,327 |
| 2012 | 33 | 33 | #3,355 |
| 2011 | 34 | 34 | #3,293 |
| 2010 | 49 | 49 | #2,547 |
| 2009 | 34 | 34 | #3,323 |
| 2008 | 47 | 47 | #2,669 |
| 2007 | 43 | 43 | #2,801 |
| 2006 | 41 | 41 | #2,820 |
| 2005 | 47 | 47 | #2,460 |
| 2004 | 44 | 44 | #2,530 |
| 2003 | 44 | 44 | #2,419 |
| 2002 | 35 | 35 | #2,745 |
| 2001 | 29 | 29 | #3,137 |
| 2000 | 20 | 20 | #4,042 |
| 1999 | 27 | 27 | #3,087 |
| 1998 | 25 | 25 | #3,174 |
| 1997 | 31 | — | #2,603 |
| 1996 | 19 | — | #3,653 |
| 1995 | 16 | — | #4,020 |
| 1994 | 26 | — | #2,837 |
| 1993 | 27 | — | #2,682 |
| 1992 | 30 | — | #2,457 |
| 1991 | 43 | — | #1,862 |
| 1990 | 39 | — | #1,964 |
| 1989 | 17 | — | #3,427 |
| 1988 | 24 | — | #2,501 |
| 1987 | 15 | — | #3,316 |
| 1986 | 17 | — | #2,991 |
| 1985 | 17 | — | #2,922 |
| 1984 | 30 | — | #1,880 |
| 1983 | 22 | — | #2,328 |
| 1982 | 27 | — | #2,053 |
| 1981 | 21 | — | #2,407 |
| 1980 | 22 | — | #2,357 |
| 1979 | 19 | — | #2,551 |
| 1978 | 20 | — | #2,369 |
| 1977 | 15 | — | #2,893 |
| 1976 | 14 | — | #2,936 |
| 1975 | 7 | — | #4,724 |
| 1974 | 9 | — | #3,797 |
| 1973 | 8 | — | #4,007 |
| 1972 | 5 | — | #5,641 |
| 1971 | 7 | — | #4,321 |
| 1970 | 6 | — | #4,654 |
| 1968 | 6 | — | #4,079 |
| 1967 | 5 | — | #4,458 |