Mackay is a very rare variant of Mack that peaked in 1996 and has grown less common since.
Mackay is predominantly a boy name. It last appears in U.S. records in 2024. Mackay first appears in 1991 and peaked in 2012 (13 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2024 | 8 | 8 | — | #9,527 |
| 2023 | 7 | 7 | — | #10,364 |
| 2022 | 11 | 11 | — | #7,558 |
| 2021 | 8 | 8 | — | #9,365 |
| 2020 | 6 | 6 | — | #11,457 |
| 2019 | 6 | 6 | — | #11,621 |
| 2018 | 7 | 7 | — | #10,339 |
| 2017 | 7 | 7 | — | #10,368 |
| 2016 | 8 | 8 | — | #9,369 |
| 2015 | 7 | 7 | — | #10,220 |
| 2014 | 7 | 7 | — | #10,317 |
| 2013 | 10 | 10 | — | #7,883 |
| 2012 | 13 | 13 | — | #6,526 |
| 2011 | 12 | 12 | — | #6,854 |
| 2010 | 8 | 8 | — | #9,346 |
| 2009 | 10 | 10 | — | #8,080 |
| 2008 | 11 | 11 | — | #7,524 |
| 2007 | 12 | 12 | #19,371 | #10,468 |
| 2006 | 14 | 14 | #18,929 | #8,481 |
| 2005 | 12 | 12 | — | #6,473 |
| 2004 | 14 | 14 | #17,734 | #7,944 |
| 2003 | 7 | 7 | — | #9,260 |
| 2002 | 10 | 10 | — | #6,851 |
| 2001 | 11 | 11 | — | #6,278 |
| 2000 | 6 | 6 | — | #9,849 |
| 1999 | 9 | 9 | — | #6,890 |
| 1998 | 10 | 10 | — | #6,135 |
| 1997 | 12 | — | — | #5,156 |
| 1996 | 14 | — | #12,809 | #6,880 |
| 1995 | 5 | — | — | #9,748 |
| 1994 | 10 | — | — | #5,732 |
| 1991 | 5 | — | — | #9,078 |