The baby name Brennen appears in baby name data for the United States from 1982 to 2020. It was most popular in 2009 with 475 babies given the name.
In the later years of this period, Brennen has become more popular compared with earlier years.
| Year | Count |
|---|---|
| 1982 | 5 |
| 1984 | 11 |
| 1985 | 5 |
| 1986 | 11 |
| 1987 | 24 |
| 1988 | 60 |
| 1989 | 47 |
| 1990 | 48 |
| 1991 | 99 |
| 1992 | 134 |
| 1993 | 125 |
| 1994 | 192 |
| 1995 | 210 |
| 1996 | 168 |
| 1997 | 316 |
| 1998 | 377 |
| 1999 | 318 |
| 2000 | 397 |
| 2001 | 339 |
| 2002 | 363 |
| 2003 | 400 |
| 2004 | 333 |
| 2005 | 359 |
| 2006 | 313 |
| 2007 | 368 |
| 2008 | 447 |
| 2009 | 475 |
| 2010 | 378 |
| 2011 | 303 |
| 2012 | 284 |
| 2013 | 163 |
| 2014 | 107 |
| 2015 | 119 |
| 2016 | 102 |
| 2017 | 38 |
| 2018 | 5 |
| 2019 | 30 |
| 2020 | 13 |