The baby name Lennox appears in baby name data for the United States from 1973 to 2024. It was most popular in 2021 with 1,708 babies given the name.
In the later years of this period, Lennox has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1973 | 5 |
| 1983 | 5 |
| 1984 | 7 |
| 1985 | 5 |
| 1987 | 9 |
| 1990 | 7 |
| 1991 | 7 |
| 1992 | 5 |
| 2002 | 15 |
| 2005 | 10 |
| 2006 | 5 |
| 2007 | 17 |
| 2008 | 42 |
| 2009 | 98 |
| 2010 | 177 |
| 2011 | 267 |
| 2012 | 47 |
| 2012 | 309 |
| 2013 | 115 |
| 2013 | 370 |
| 2014 | 185 |
| 2014 | 522 |
| 2015 | 426 |
| 2015 | 791 |
| 2016 | 476 |
| 2016 | 911 |
| 2017 | 544 |
| 2017 | 988 |
| 2018 | 486 |
| 2018 | 1,191 |
| 2019 | 404 |
| 2019 | 1,302 |
| 2020 | 540 |
| 2020 | 1,360 |
| 2021 | 582 |
| 2021 | 1,708 |
| 2022 | 580 |
| 2022 | 1,682 |
| 2023 | 577 |
| 2023 | 1,486 |
| 2024 | 475 |
| 2024 | 1,482 |