Mclain is a very rare boys' name that peaked in 2001 and has grown less common since.
Mclain is predominantly a boy name. In 2025 it ranked #6,328 for boy births in the United States (and #13,324 across all names), given to 14 babies. Mclain was first reported in SSA data in 1982 and peaked in 2025 (14 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 14 | 14 | — | #6,328 |
| 2024 | 15 | 15 | #16,856 | #8,124 |
| 2021 | 8 | 8 | — | #9,389 |
| 2018 | 7 | 7 | — | #10,373 |
| 2017 | 9 | 9 | — | #8,601 |
| 2016 | 6 | 6 | — | #11,659 |
| 2015 | 10 | 10 | — | #7,855 |
| 2014 | 9 | 9 | — | #8,567 |
| 2013 | 6 | 6 | — | #11,681 |
| 2012 | 9 | 9 | — | #8,635 |
| 2011 | 6 | 6 | — | #11,789 |
| 2010 | 7 | 7 | — | #10,381 |
| 2008 | 7 | 7 | — | #10,643 |
| 2006 | 7 | 7 | — | #10,279 |
| 2005 | 9 | 9 | — | #8,082 |
| 2004 | 8 | 8 | — | #8,653 |
| 2003 | 11 | 11 | — | #6,567 |
| 2002 | 12 | 12 | — | #5,953 |
| 2001 | 18 | 18 | #10,714 | #7,303 |
| 2000 | 10 | 10 | — | #6,667 |
| 1999 | 6 | 6 | — | #9,491 |
| 1998 | 7 | 7 | — | #8,158 |
| 1997 | 11 | — | — | #5,528 |
| 1996 | 14 | — | #14,999 | #6,332 |
| 1995 | 7 | — | — | #7,523 |
| 1994 | 6 | — | — | #8,425 |
| 1991 | 5 | — | — | #9,125 |
| 1982 | 6 | — | — | #6,131 |