Popularity in Northern Ireland
Numbers
| Theodore (masculine) | |||
| Year | Rank | Percent Used | |
| 2023 | #47 | 0.480 | |
| 2022 | #57 | 0.449 | |
| 2021 | #50 | 0.485 | |
| 2020 | #57 | 0.446 | |
| 2019 | #84 | 0.326 | |
| 2018 | - | - | |
| 2017 | - | - | |
| 2016 | - | - | |
| 2015 | - | - | |
| 2014 | - | - | |
| 2013 | - | - | |
| 2012 | - | - | |
| 2011 | - | - | |
| 2010 | - | - | |
| 2009 | - | - | |
| 2008 | - | - | |
| 2007 | - | - | |
| 2006 | - | - | |
| 2005 | - | - | |
| 2004 | - | - | |
| 2003 | - | - | |
| 2002 | - | - | |
| 2001 | - | - | |
| 2000 | - | - | |
| 1999 | - | - | |
| 1998 | - | - | |
| 1997 | - | - | |
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