Addilyn is an uncommon variant of Adalyn that peaked in 2016 and has grown less common since.
Addilyn is predominantly a girl name. In 2025 it ranked #988 for girl births in the United States (and #1,882 across all names), given to 256 babies. Addilyn first appears in 1999 and peaked in 2016 (1,040 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 256 | 256 | #988 | — |
| 2024 | 365 | 365 | #772 | — |
| 2023 | 376 | 376 | #749 | — |
| 2022 | 520 | 520 | #575 | — |
| 2021 | 750 | 750 | #420 | — |
| 2020 | 652 | 652 | #469 | — |
| 2019 | 615 | 615 | #512 | — |
| 2018 | 875 | 875 | #359 | — |
| 2017 | 825 | 825 | #376 | — |
| 2016 | 1,045 | 1,045 | #312 | #12,227 |
| 2015 | 974 | 974 | #335 | — |
| 2014 | 570 | 570 | #543 | — |
| 2013 | 440 | 440 | #640 | — |
| 2012 | 404 | 404 | #695 | — |
| 2011 | 342 | 342 | #790 | — |
| 2010 | 264 | 264 | #967 | — |
| 2009 | 211 | 211 | #1,192 | — |
| 2008 | 137 | 137 | #1,642 | — |
| 2007 | 101 | 101 | #2,016 | — |
| 2006 | 49 | 49 | #3,317 | — |
| 2005 | 39 | 39 | #3,732 | — |
| 2004 | 18 | 18 | #6,493 | — |
| 2003 | 18 | 18 | #6,301 | — |
| 2001 | 11 | 11 | #8,764 | — |
| 1999 | 5 | 5 | #14,429 | — |