Lain is a rare variant of Lana that peaked in 2004 and has grown less common since.
Lain is predominantly a boy name. In 2025 it ranked #6,022 for boy births in the United States (and #12,657 across all names), given to 15 babies. Lain was first reported in SSA data in 1973 and peaked in 2011 (25 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 15 | 15 | — | #6,022 |
| 2024 | 11 | 11 | — | #7,544 |
| 2023 | 15 | 15 | #12,862 | #9,414 |
| 2022 | 14 | 14 | — | #6,348 |
| 2021 | 21 | 21 | — | #4,709 |
| 2020 | 13 | 13 | — | #6,494 |
| 2019 | 15 | 15 | — | #5,986 |
| 2018 | 8 | 8 | — | #9,296 |
| 2017 | 14 | 14 | — | #6,209 |
| 2016 | 12 | 12 | — | #6,963 |
| 2015 | 17 | 17 | — | #5,421 |
| 2014 | 18 | 18 | — | #5,176 |
| 2013 | 18 | 18 | — | #5,090 |
| 2012 | 22 | 22 | — | #4,478 |
| 2011 | 25 | 25 | — | #4,055 |
| 2010 | 17 | 17 | — | #5,381 |
| 2009 | 18 | 18 | — | #5,224 |
| 2008 | 16 | 16 | #14,674 | #8,717 |
| 2007 | 23 | 23 | #19,206 | #5,131 |
| 2006 | 17 | 17 | — | #5,210 |
| 2005 | 13 | 13 | — | #6,076 |
| 2004 | 26 | 26 | #12,258 | #4,708 |
| 2003 | 15 | 15 | — | #5,176 |
| 2002 | 8 | 8 | — | #8,128 |
| 2001 | 15 | 15 | — | #5,040 |
| 2000 | 23 | 23 | — | #3,596 |
| 1999 | 11 | 11 | — | #5,884 |
| 1998 | 13 | 13 | — | #5,060 |
| 1997 | 8 | — | — | #6,991 |
| 1996 | 11 | — | — | #5,388 |
| 1995 | 11 | — | — | #5,364 |
| 1994 | 8 | — | — | #6,736 |
| 1993 | 5 | — | — | #9,563 |
| 1992 | 5 | — | — | #9,235 |
| 1982 | 5 | — | — | #6,928 |
| 1973 | 5 | — | — | #5,525 |