Lennox is an established name used for both girls and boys that has climbed to its highest level yet, peaking in 2022.
Lennox is predominantly a boy name. In 2025 it ranked #289 among boys (1,160) and #717 among girls (392) — overall #438 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 1,552 | 1,552 | #717 | #289 |
| 2024 | 1,738 | 1,738 | #687 | #264 |
| 2023 | 1,760 | 1,760 | #626 | #266 |
| 2022 | 1,915 | 1,915 | #612 | #248 |
| 2021 | 1,899 | 1,899 | #602 | #254 |
| 2020 | 1,663 | 1,663 | #589 | #292 |
| 2019 | 1,410 | 1,410 | #719 | #330 |
| 2018 | 1,337 | 1,337 | #650 | #371 |
| 2017 | 1,206 | 1,206 | #667 | #409 |
| 2016 | 1,097 | 1,097 | #716 | #443 |
| 2015 | 980 | 980 | #745 | #490 |
| 2014 | 690 | 690 | #1,157 | #585 |
| 2013 | 511 | 511 | #1,454 | #675 |
| 2012 | 388 | 388 | #2,053 | #775 |
| 2011 | 309 | 309 | #3,532 | #823 |
| 2010 | 238 | 238 | #6,083 | #934 |
| 2009 | 175 | 175 | #11,138 | #1,123 |
| 2008 | 117 | 117 | #9,289 | #1,550 |
| 2007 | 86 | 86 | #10,534 | #1,905 |
| 2006 | 64 | 64 | #18,843 | #2,197 |
| 2005 | 53 | 53 | #18,054 | #2,418 |
| 2004 | 37 | 37 | — | #2,825 |
| 2003 | 35 | 35 | — | #2,823 |
| 2002 | 37 | 37 | — | #2,621 |
| 2001 | 22 | 22 | — | #3,799 |
| 2000 | 27 | 27 | — | #3,193 |
| 1999 | 21 | 21 | — | #3,656 |
| 1998 | 13 | 13 | — | #5,066 |
| 1997 | 9 | — | — | #6,409 |
| 1996 | 15 | — | #14,813 | #5,803 |
| 1995 | 12 | — | — | #4,991 |
| 1994 | 10 | — | — | #5,723 |
| 1993 | 18 | — | — | #3,586 |
| 1992 | 12 | — | — | #4,747 |
| 1991 | 9 | — | — | #5,771 |
| 1990 | 10 | — | — | #5,231 |
| 1989 | 9 | — | — | #5,426 |
| 1988 | 8 | — | — | #5,511 |
| 1987 | 11 | — | — | #4,131 |
| 1986 | 6 | — | — | #6,393 |
| 1985 | 6 | — | — | #6,226 |
| 1984 | 11 | — | — | #3,829 |
| 1983 | 8 | — | — | #4,738 |
| 1982 | 10 | — | — | #4,114 |
| 1981 | 8 | — | — | #4,779 |
| 1979 | 5 | — | — | #6,636 |
| 1978 | 6 | — | — | #5,492 |
| 1977 | 7 | — | — | #4,913 |
| 1975 | 6 | — | — | #5,179 |
| 1973 | 8 | — | — | #3,919 |
| 1972 | 10 | — | — | #3,264 |
| 1971 | 13 | — | — | #2,758 |
| 1970 | 10 | — | — | #3,191 |
| 1969 | 6 | — | — | #4,209 |
| 1968 | 10 | — | — | #2,836 |
| 1967 | 6 | — | — | #3,802 |
| 1965 | 6 | — | — | #3,752 |
| 1964 | 6 | — | — | #3,860 |
| 1961 | 9 | — | — | #3,009 |
| 1960 | 9 | — | — | #2,985 |
| 1959 | 7 | — | — | #3,460 |
| 1958 | 5 | — | — | #4,276 |
| 1954 | 6 | — | — | #3,662 |
| 1952 | 8 | — | — | #2,997 |
| 1951 | 5 | — | — | #4,020 |
| 1950 | 6 | — | — | #3,527 |
| 1948 | 6 | — | — | #3,519 |
| 1945 | 5 | — | — | #3,576 |
| 1943 | 7 | — | — | #3,109 |
| 1935 | 5 | — | — | #3,942 |
| 1919 | 5 | — | — | #4,523 |
| 1918 | 5 | — | — | #4,528 |