Fallon is an established girls' name that peaked in 1982 and remains in steady use.
Fallon is predominantly a girl name. In 2025 it ranked #779 among girls (349) and #5,943 among boys (15) — overall #1,471 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 364 | 364 | #779 | #5,943 |
| 2024 | 404 | 404 | #738 | #4,603 |
| 2023 | 452 | 452 | #688 | #3,741 |
| 2022 | 428 | 428 | #716 | #5,092 |
| 2021 | 423 | 423 | #727 | #3,675 |
| 2020 | 342 | 342 | #865 | #3,517 |
| 2019 | 305 | 305 | #961 | #3,591 |
| 2018 | 266 | 266 | #1,072 | #3,735 |
| 2017 | 241 | 241 | #1,133 | #4,514 |
| 2016 | 280 | 280 | #1,076 | #3,127 |
| 2015 | 263 | 263 | #1,126 | #3,102 |
| 2014 | 278 | 278 | #1,030 | #3,937 |
| 2013 | 263 | 263 | #1,064 | #3,606 |
| 2012 | 229 | 229 | #1,188 | #4,438 |
| 2011 | 233 | 233 | #1,191 | #3,457 |
| 2010 | 221 | 221 | #1,237 | #3,926 |
| 2009 | 209 | 209 | #1,307 | #4,200 |
| 2008 | 213 | 213 | #1,290 | #4,778 |
| 2007 | 234 | 234 | #1,167 | #5,505 |
| 2006 | 201 | 201 | #1,279 | #5,877 |
| 2005 | 163 | 163 | #1,401 | #7,289 |
| 2004 | 168 | 168 | #1,340 | #7,737 |
| 2003 | 172 | 172 | #1,309 | #5,358 |
| 2002 | 153 | 153 | #1,354 | #6,695 |
| 2001 | 178 | 178 | #1,197 | #8,597 |
| 2000 | 165 | 165 | #1,205 | — |
| 1999 | 183 | 183 | #1,115 | #10,439 |
| 1998 | 197 | 197 | #1,055 | #5,590 |
| 1997 | 194 | — | #1,022 | #8,502 |
| 1996 | 181 | — | #1,051 | #9,469 |
| 1995 | 203 | — | #929 | — |
| 1994 | 192 | — | #996 | #8,097 |
| 1993 | 219 | — | #883 | — |
| 1992 | 237 | — | #841 | — |
| 1991 | 191 | — | #986 | — |
| 1990 | 207 | — | #921 | — |
| 1989 | 218 | — | #856 | — |
| 1988 | 227 | — | #819 | #7,651 |
| 1987 | 254 | — | #714 | — |
| 1986 | 396 | — | #521 | — |
| 1985 | 405 | — | #502 | — |
| 1984 | 452 | — | #462 | — |
| 1983 | 586 | — | #380 | — |
| 1982 | 618 | — | #376 | #5,206 |
| 1981 | 240 | — | #715 | #4,662 |
| 1972 | 5 | — | — | #5,215 |