Hadlee is an uncommon variant of Hadley that peaked in 2016 and remains in steady use.
Hadlee is predominantly a girl name. In 2025 it ranked #931 for girl births in the United States (and #1,773 across all names), given to 281 babies. Hadlee first appears in 1994 and peaked in 2016 (396 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 281 | 281 | #931 | — |
| 2024 | 281 | 281 | #940 | — |
| 2023 | 299 | 299 | #895 | — |
| 2022 | 329 | 329 | #852 | — |
| 2021 | 381 | 381 | #746 | — |
| 2020 | 321 | 321 | #859 | #9,921 |
| 2019 | 291 | 291 | #910 | — |
| 2018 | 346 | 346 | #792 | — |
| 2017 | 320 | 320 | #854 | — |
| 2016 | 403 | 403 | #719 | #10,022 |
| 2015 | 346 | 346 | #811 | — |
| 2014 | 290 | 290 | #930 | — |
| 2013 | 289 | 289 | #890 | — |
| 2012 | 199 | 199 | #1,222 | — |
| 2011 | 187 | 187 | #1,295 | #12,971 |
| 2010 | 126 | 126 | #1,681 | — |
| 2009 | 89 | 89 | #2,212 | — |
| 2008 | 78 | 78 | #2,450 | — |
| 2007 | 78 | 78 | #2,424 | — |
| 2006 | 68 | 68 | #2,647 | — |
| 2005 | 53 | 53 | #3,024 | — |
| 2004 | 54 | 54 | #2,935 | — |
| 2003 | 33 | 33 | #4,057 | — |
| 2002 | 35 | 35 | #4,215 | #11,304 |
| 2001 | 17 | 17 | #6,432 | — |
| 2000 | 29 | 29 | #4,224 | — |
| 1999 | 10 | 10 | #9,032 | — |
| 1998 | 8 | 8 | #10,448 | — |
| 1997 | 10 | — | #8,569 | — |
| 1994 | 7 | — | #10,966 | — |