Brennyn is a very rare name used for both girls and boys that peaked in 2009 and has since faded.
Brennyn is predominantly a girl name. It last appears in U.S. records in 2019. Brennyn first appears in 1992 and peaked in 2009 (17 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2019 | 5 | 5 | #15,952 | — |
| 2018 | 8 | 8 | — | #8,942 |
| 2017 | 6 | 6 | — | #10,973 |
| 2016 | 6 | 6 | #14,649 | — |
| 2015 | 5 | 5 | #16,901 | — |
| 2014 | 14 | 14 | #13,311 | #9,780 |
| 2013 | 13 | 13 | #13,419 | #10,932 |
| 2012 | 21 | 21 | #8,710 | #8,977 |
| 2011 | 21 | 21 | #10,533 | #7,076 |
| 2010 | 25 | 25 | #8,805 | #6,738 |
| 2009 | 32 | 32 | #7,392 | #5,839 |
| 2008 | 22 | 22 | #8,602 | #9,109 |
| 2007 | 26 | 26 | #8,601 | #6,673 |
| 2006 | 13 | 13 | #15,453 | #9,708 |
| 2005 | 11 | 11 | #14,795 | #11,694 |
| 2004 | 13 | 13 | #16,512 | #8,234 |
| 2003 | 13 | 13 | #16,165 | #7,940 |
| 2002 | 8 | 8 | — | #7,735 |
| 2001 | 5 | 5 | #15,733 | — |
| 1998 | 6 | 6 | #12,681 | — |
| 1992 | 5 | — | — | #8,579 |