Popularity in Ireland
Numbers
| Siobhan (feminine) | |||
| Year | Rank | Times Used | |
| 2023 | - | - | |
| 2022 | - | - | |
| 2021 | - | - | |
| 2020 | - | - | |
| 2019 | - | - | |
| 2018 | - | - | |
| 2017 | - | - | |
| 2016 | - | - | |
| 2015 | - | - | |
| 2014 | - | - | |
| 2013 | - | - | |
| 2012 | - | - | |
| 2011 | - | - | |
| 2010 | - | - | |
| 2009 | - | - | |
| 2008 | - | - | |
| 2007 | - | - | |
| 2006 | - | - | |
| 2005 | - | - | |
| 2004 | #97 | 55 | |
| 2003 | #100 | 51 | |
| 2002 | #87 | 56 | |
| 2001 | #65 | 78 | |
| 2000 | #74 | 64 | |
| 1999 | #76 | 60 | |
| 1998 | #50 | 79 | |
| 1997 | #57 | 100 | |
| 1996 | #48 | 118 | |
| 1995 | #49 | 126 | |
| 1994 | #45 | 124 | |
| 1993 | #45 | 133 | |
| 1992 | #37 | 156 | |
| 1991 | #33 | 174 | |
| 1990 | #32 | 191 | |
| 1989 | #25 | 198 | |
| 1988 | #26 | 199 | |
| 1987 | #23 | 271 | |
| 1986 | #29 | 225 | |
| 1985 | #34 | 228 | |
| 1984 | #30 | 244 | |
| 1983 | #29 | 258 | |
| 1982 | #28 | 302 | |
| 1981 | #26 | 318 | |
| 1980 | #33 | 314 | |
| 1979 | #35 | 281 | |
| 1978 | #30 | 304 | |
| 1977 | #30 | 283 | |
| 1976 | #26 | 314 | |
| 1975 | #21 | 340 | |
| 1974 | #26 | 301 | |
| 1973 | #21 | 332 | |
| 1972 | #22 | 319 | |
| 1971 | #15 | 401 | |
| 1970 | #21 | 312 | |
| 1969 | #22 | 295 | |
| 1968 | #29 | 226 | |
| 1967 | #31 | 242 | |
| 1966 | #31 | 242 | |
| 1965 | #34 | 247 | |
| 1964 | #35 | 207 | |
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