Popularity (masculine) in Ireland
Numbers
| Cillian (masculine) | |||
| Year | Rank | Percent Used | |
| 2021 | #9 | 1.080 | |
| 2020 | #11 | 1.045 | |
| 2019 | #17 | 0.946 | |
| 2018 | #17 | 0.918 | |
| 2017 | #16 | 0.948 | |
| 2016 | #22 | 0.908 | |
| 2015 | #22 | 0.889 | |
| 2014 | #20 | 1.006 | |
| 2013 | #23 | 0.913 | |
| 2012 | #23 | 0.916 | |
| 2011 | #22 | 0.942 | |
| 2010 | #21 | 0.922 | |
| 2009 | #22 | 0.903 | |
| 2008 | #23 | 0.902 | |
| 2007 | #22 | 1.047 | |
| 2006 | #28 | 0.907 | |
| 2005 | #45 | 0.533 | |
| 2004 | #40 | 0.568 | |
| 2003 | #60 | 0.397 | |
| 2002 | #66 | 0.350 | |
| 2001 | #58 | 0.411 | |
| 2000 | #59 | 0.428 | |
| 1999 | #61 | 0.395 | |
| 1998 | #60 | 0.422 | |
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