Mainor is a very rare boys' name that peaked in 2007 and has since faded.
Mainor is a boy name. In 2025 it ranked #13,195 for boy births in the United States (and #27,127 across all names), given to 5 babies. Mainor first appears in 1991 and peaked in 2007 (14 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 5 | 5 | #13,195 |
| 2024 | 5 | 5 | #13,489 |
| 2022 | 8 | 8 | #9,536 |
| 2020 | 5 | 5 | #13,322 |
| 2018 | 6 | 6 | #11,627 |
| 2017 | 7 | 7 | #10,376 |
| 2008 | 12 | 12 | #7,038 |
| 2007 | 14 | 14 | #6,147 |
| 2006 | 6 | 6 | #11,525 |
| 2005 | 5 | 5 | #12,621 |
| 2004 | 8 | 8 | #8,625 |
| 2003 | 9 | 9 | #7,611 |
| 2002 | 6 | 6 | #10,177 |
| 2001 | 6 | 6 | #10,060 |
| 2000 | 5 | 5 | #11,503 |
| 1998 | 5 | 5 | #10,654 |
| 1995 | 5 | — | #9,753 |
| 1994 | 9 | — | #6,161 |
| 1992 | 6 | — | #8,062 |
| 1991 | 8 | — | #6,297 |