Popularity in England and Wales
Numbers
| Niall (masculine) | |||
| Year | Rank | Percent Used | |
| 2023 | #625 | 0.019 | |
| 2022 | #592 | 0.020 | |
| 2021 | #514 | 0.024 | |
| 2020 | #431 | 0.030 | |
| 2019 | #435 | 0.029 | |
| 2018 | #414 | 0.030 | |
| 2017 | #383 | 0.034 | |
| 2016 | #395 | 0.031 | |
| 2015 | #353 | 0.036 | |
| 2014 | #295 | 0.043 | |
| 2013 | #280 | 0.046 | |
| 2012 | #286 | 0.043 | |
| 2011 | #298 | 0.040 | |
| 2010 | #286 | 0.043 | |
| 2009 | #284 | 0.042 | |
| 2008 | #256 | 0.047 | |
| 2007 | #242 | 0.049 | |
| 2006 | #215 | 0.055 | |
| 2005 | #189 | 0.068 | |
| 2004 | #201 | 0.056 | |
| 2003 | #162 | 0.081 | |
| 2002 | #128 | 0.112 | |
| 2001 | #138 | 0.100 | |
| 2000 | #122 | 0.114 | |
| 1999 | #111 | 0.133 | |
| 1998 | #116 | 0.123 | |
| 1997 | #109 | 0.125 | |
| 1996 | #106 | 0.139 | |
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