Brannon is an uncommon variant of Brennan that peaked in 1998 and has since faded.
Brannon is predominantly a boy name. In 2025 it ranked #6,508 for boy births in the United States (and #13,676 across all names), given to 13 babies. Brannon first appears in 1934 and peaked in 1998 (158 births).
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 13 | 13 | — | #6,508 |
| 2024 | 8 | 8 | — | #9,108 |
| 2023 | 11 | 11 | — | #7,356 |
| 2022 | 15 | 15 | — | #5,915 |
| 2021 | 33 | 33 | — | #3,431 |
| 2020 | 16 | 16 | — | #5,491 |
| 2019 | 27 | 27 | — | #3,906 |
| 2018 | 30 | 30 | — | #3,614 |
| 2017 | 26 | 26 | — | #4,006 |
| 2016 | 34 | 34 | — | #3,302 |
| 2015 | 34 | 34 | — | #3,303 |
| 2014 | 39 | 39 | — | #2,938 |
| 2013 | 40 | 40 | — | #2,856 |
| 2012 | 35 | 35 | — | #3,186 |
| 2011 | 42 | 42 | — | #2,804 |
| 2010 | 46 | 46 | — | #2,638 |
| 2009 | 64 | 64 | — | #2,122 |
| 2008 | 62 | 62 | — | #2,162 |
| 2007 | 95 | 95 | — | #1,624 |
| 2006 | 87 | 87 | — | #1,641 |
| 2005 | 71 | 71 | — | #1,816 |
| 2004 | 68 | 68 | — | #1,818 |
| 2003 | 91 | 91 | — | #1,438 |
| 2002 | 107 | 107 | — | #1,269 |
| 2001 | 106 | 106 | — | #1,255 |
| 2000 | 116 | 116 | — | #1,177 |
| 1999 | 118 | 118 | — | #1,118 |
| 1998 | 158 | 158 | — | #909 |
| 1997 | 113 | — | — | #1,117 |
| 1996 | 120 | — | #12,035 | #1,067 |
| 1995 | 135 | — | — | #956 |
| 1994 | 125 | — | — | #995 |
| 1993 | 115 | — | #10,748 | #1,072 |
| 1992 | 127 | — | #9,591 | #990 |
| 1991 | 94 | — | #11,680 | #1,184 |
| 1990 | 99 | — | — | #1,066 |
| 1989 | 102 | — | — | #1,016 |
| 1988 | 87 | — | #10,524 | #1,108 |
| 1987 | 101 | — | #8,880 | #975 |
| 1986 | 93 | — | — | #947 |
| 1985 | 109 | — | #10,848 | #889 |
| 1984 | 97 | — | #9,265 | #922 |
| 1983 | 117 | — | #6,269 | #843 |
| 1982 | 116 | — | #7,558 | #855 |
| 1981 | 131 | — | #10,591 | #775 |
| 1980 | 155 | — | #7,492 | #722 |
| 1979 | 134 | — | #7,389 | #770 |
| 1978 | 112 | — | #7,017 | #842 |
| 1977 | 125 | — | #7,632 | #787 |
| 1976 | 111 | — | #9,445 | #810 |
| 1975 | 113 | — | #8,088 | #805 |
| 1974 | 80 | — | — | #903 |
| 1973 | 66 | — | — | #993 |
| 1972 | 73 | — | — | #943 |
| 1971 | 86 | — | — | #878 |
| 1970 | 49 | — | — | #1,181 |
| 1969 | 38 | — | — | #1,280 |
| 1968 | 34 | — | — | #1,316 |
| 1967 | 22 | — | — | #1,660 |
| 1966 | 23 | — | — | #1,615 |
| 1965 | 19 | — | — | #1,811 |
| 1964 | 14 | — | — | #2,218 |
| 1963 | 10 | — | — | #2,688 |
| 1962 | 9 | — | — | #2,866 |
| 1961 | 7 | — | — | #3,386 |
| 1960 | 6 | — | — | #3,699 |
| 1958 | 11 | — | — | #2,526 |
| 1957 | 5 | — | — | #4,043 |
| 1955 | 7 | — | — | #3,228 |
| 1954 | 8 | — | — | #2,974 |
| 1953 | 7 | — | — | #3,171 |
| 1950 | 5 | — | — | #3,749 |
| 1947 | 5 | — | — | #3,779 |
| 1942 | 6 | — | — | #3,257 |
| 1941 | 5 | — | — | #3,557 |
| 1934 | 5 | — | — | #3,730 |