Popularity (masculine) in Northern Ireland
Numbers
| Cillian (masculine) | |||
| Year | Rank | Percent Used | |
| 2023 | #4 | 1.255 | |
| 2022 | #9 | 1.039 | |
| 2021 | #8 | 1.023 | |
| 2020 | #9 | 1.030 | |
| 2019 | #14 | 0.891 | |
| 2018 | #13 | 1.007 | |
| 2017 | #15 | 0.916 | |
| 2016 | #31 | 0.636 | |
| 2015 | #25 | 0.704 | |
| 2014 | #48 | 0.502 | |
| 2013 | #46 | 0.517 | |
| 2012 | #60 | 0.423 | |
| 2011 | #66 | 0.405 | |
| 2010 | #62 | 0.418 | |
| 2009 | #83 | 0.313 | |
| 2008 | #98 | 0.257 | |
| 2007 | #79 | 0.320 | |
| 2006 | - | - | |
| 2005 | - | - | |
| 2004 | - | - | |
| 2003 | - | - | |
| 2002 | - | - | |
| 2001 | - | - | |
| 2000 | - | - | |
| 1999 | - | - | |
| 1998 | - | - | |
| 1997 | - | - | |
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