Ailin is a rare variant of Aileen that peaked in 2012 and has grown less common since.
Ailin is predominantly a girl name. In 2025 it ranked #3,715 for girl births in the United States (and #6,512 across all names), given to 40 babies. Ailin was first reported in SSA data in 1990 and peaked in 2012 (84 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 40 | 40 | #3,715 | — |
| 2024 | 23 | 23 | #5,451 | — |
| 2023 | 30 | 30 | #4,569 | — |
| 2022 | 29 | 29 | #4,675 | — |
| 2021 | 29 | 29 | #4,613 | — |
| 2020 | 25 | 25 | #5,009 | — |
| 2019 | 31 | 31 | #4,437 | — |
| 2018 | 27 | 27 | #4,894 | — |
| 2017 | 40 | 40 | #3,772 | — |
| 2016 | 33 | 33 | #4,348 | — |
| 2015 | 59 | 59 | #2,927 | — |
| 2014 | 49 | 49 | #3,274 | — |
| 2013 | 60 | 60 | #2,837 | — |
| 2012 | 89 | 89 | #2,235 | #12,330 |
| 2011 | 49 | 49 | #3,304 | — |
| 2010 | 65 | 65 | #2,727 | — |
| 2009 | 71 | 71 | #2,592 | — |
| 2008 | 53 | 53 | #3,160 | — |
| 2007 | 50 | 50 | #3,332 | — |
| 2006 | 46 | 46 | #3,469 | — |
| 2005 | 47 | 47 | #3,260 | — |
| 2004 | 36 | 36 | #3,902 | — |
| 2003 | 23 | 23 | #5,244 | — |
| 2002 | 31 | 31 | #4,072 | — |
| 2001 | 42 | 42 | #3,257 | — |
| 2000 | 21 | 21 | #5,315 | — |
| 1999 | 22 | 22 | #4,874 | — |
| 1998 | 19 | 19 | #5,366 | — |
| 1997 | 17 | — | #5,629 | — |
| 1996 | 8 | — | #9,596 | — |
| 1995 | 7 | — | #10,531 | — |
| 1991 | 7 | — | #10,284 | — |
| 1990 | 5 | — | #12,988 | — |