Popularity in Northern Ireland
Numbers
| Ciaran (masculine) | |||
| Year | Rank | Percent Used | |
| 2023 | - | - | |
| 2022 | - | - | |
| 2021 | - | - | |
| 2020 | #96 | 0.260 | |
| 2019 | - | - | |
| 2018 | - | - | |
| 2017 | - | - | |
| 2016 | - | - | |
| 2015 | #98 | 0.248 | |
| 2014 | - | - | |
| 2013 | #97 | 0.266 | |
| 2012 | #97 | 0.254 | |
| 2011 | #74 | 0.366 | |
| 2010 | #74 | 0.348 | |
| 2009 | #62 | 0.430 | |
| 2008 | #58 | 0.470 | |
| 2007 | #53 | 0.495 | |
| 2006 | #59 | 0.450 | |
| 2005 | #53 | 0.529 | |
| 2004 | #30 | 0.793 | |
| 2003 | #43 | 0.605 | |
| 2002 | #45 | 0.653 | |
| 2001 | #30 | 0.859 | |
| 2000 | #28 | 0.917 | |
| 1999 | #27 | 0.921 | |
| 1998 | #26 | 0.987 | |
| 1997 | #29 | 0.917 | |
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