Fionna is a rare variant of Fiona that peaked in 2012 and has since faded.
Fionna is a girl name. In 2025 it ranked #13,769 for girl births in the United States (and #22,918 across all names), given to 6 babies. Fionna first appears in 1971 and peaked in 2012 (41 births).
| Year | U.S. births | U.S. + territories | Rank |
|---|---|---|---|
| 2025 | 6 | 6 | #13,769 |
| 2024 | 11 | 11 | #9,130 |
| 2023 | 9 | 9 | #10,597 |
| 2022 | 10 | 10 | #9,936 |
| 2021 | 15 | 15 | #7,384 |
| 2020 | 16 | 16 | #7,027 |
| 2019 | 11 | 11 | #9,329 |
| 2018 | 28 | 28 | #4,801 |
| 2017 | 26 | 26 | #5,097 |
| 2016 | 20 | 20 | #6,255 |
| 2015 | 19 | 19 | #6,541 |
| 2014 | 38 | 38 | #3,951 |
| 2013 | 34 | 34 | #4,277 |
| 2012 | 41 | 41 | #3,806 |
| 2011 | 21 | 21 | #6,216 |
| 2010 | 24 | 24 | #5,678 |
| 2009 | 26 | 26 | #5,440 |
| 2008 | 19 | 19 | #6,892 |
| 2007 | 17 | 17 | #7,501 |
| 2006 | 28 | 28 | #5,000 |
| 2005 | 21 | 21 | #5,884 |
| 2004 | 31 | 31 | #4,424 |
| 2003 | 24 | 24 | #5,142 |
| 2002 | 33 | 33 | #3,914 |
| 2001 | 25 | 25 | #4,737 |
| 2000 | 24 | 24 | #4,845 |
| 1999 | 22 | 22 | #4,918 |
| 1998 | 20 | 20 | #5,208 |
| 1997 | 16 | — | #5,970 |
| 1996 | 12 | — | #7,289 |
| 1995 | 5 | — | #14,167 |
| 1994 | 6 | — | #12,289 |
| 1992 | 9 | — | #8,980 |
| 1990 | 8 | — | #9,557 |
| 1989 | 9 | — | #8,255 |
| 1988 | 5 | — | #12,423 |
| 1987 | 7 | — | #9,088 |
| 1986 | 9 | — | #7,313 |
| 1985 | 5 | — | #11,204 |
| 1983 | 6 | — | #9,400 |
| 1979 | 7 | — | #8,310 |
| 1977 | 5 | — | #10,108 |
| 1976 | 5 | — | #9,753 |
| 1971 | 5 | — | #8,733 |