Popularity in England and Wales
Numbers
| Fionn (masculine) | |||
| Year | Rank | Percent Used | |
| 2022 | #555 | 0.022 | |
| 2021 | #610 | 0.019 | |
| 2020 | #601 | 0.019 | |
| 2019 | #589 | 0.019 | |
| 2018 | #702 | 0.015 | |
| 2017 | #628 | 0.016 | |
| 2016 | #691 | 0.014 | |
| 2015 | #790 | 0.011 | |
| 2014 | #805 | 0.011 | |
| 2013 | #976 | 0.008 | |
| 2012 | - | - | |
| 2011 | #831 | 0.010 | |
| 2010 | - | - | |
| 2009 | - | - | |
| 2008 | #916 | 0.008 | |
| 2007 | #848 | 0.009 | |
| 2006 | #764 | 0.010 | |
| 2005 | #850 | 0.008 | |
| 2004 | - | - | |
| 2003 | #912 | 0.007 | |
| 2002 | - | - | |
| 2001 | - | - | |
| 2000 | - | - | |
| 1999 | - | - | |
| 1998 | - | - | |
| 1997 | #600 | 0.008 | |
| 1996 | - | - | |
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