Popularity (masculine) in Northern Ireland
Numbers
| Thomas (masculine) | |||
| Year | Rank | Percent Used | |
| 2022 | #10 | 1.001 | |
| 2021 | #11 | 0.956 | |
| 2020 | #6 | 1.098 | |
| 2019 | #8 | 1.200 | |
| 2018 | #9 | 1.215 | |
| 2017 | #7 | 1.318 | |
| 2016 | #14 | 0.942 | |
| 2015 | #9 | 1.246 | |
| 2014 | #10 | 1.160 | |
| 2013 | #11 | 1.158 | |
| 2012 | #14 | 1.070 | |
| 2011 | #11 | 1.225 | |
| 2010 | #13 | 1.194 | |
| 2009 | #9 | 1.329 | |
| 2008 | #8 | 1.337 | |
| 2007 | #7 | 1.446 | |
| 2006 | #13 | 1.344 | |
| 2005 | #12 | 1.351 | |
| 2004 | #12 | 1.488 | |
| 2003 | #14 | 1.423 | |
| 2002 | #12 | 1.482 | |
| 2001 | #9 | 1.712 | |
| 2000 | #12 | 1.451 | |
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