Ciaran is an uncommon boys' name that has climbed to its highest level yet, peaking in 2025.
Ciaran is predominantly a boy name. In 2025 it ranked #1,609 among boys (105) and #15,421 among girls (5) — overall #3,318 across all names. The charts below show girls and boys separately.
| Year | U.S. births | U.S. + territories | ♀ Rank | ♂ Rank |
|---|---|---|---|---|
| 2025 | 110 | 110 | #15,421 | #1,609 |
| 2024 | 93 | 93 | — | #1,767 |
| 2023 | 82 | 82 | — | #1,914 |
| 2022 | 83 | 83 | — | #1,894 |
| 2021 | 71 | 71 | — | #2,065 |
| 2020 | 69 | 69 | — | #2,051 |
| 2019 | 61 | 61 | — | #2,270 |
| 2018 | 61 | 61 | — | #2,238 |
| 2017 | 60 | 60 | — | #2,218 |
| 2016 | 67 | 67 | — | #2,094 |
| 2015 | 74 | 74 | — | #1,960 |
| 2014 | 83 | 83 | — | #1,798 |
| 2013 | 81 | 81 | — | #1,783 |
| 2012 | 61 | 61 | — | #2,176 |
| 2011 | 78 | 78 | — | #1,826 |
| 2010 | 62 | 62 | — | #2,149 |
| 2009 | 74 | 74 | — | #1,926 |
| 2008 | 85 | 85 | #15,814 | #1,841 |
| 2007 | 70 | 70 | — | #2,001 |
| 2006 | 63 | 63 | — | #2,086 |
| 2005 | 60 | 60 | — | #2,063 |
| 2004 | 70 | 70 | #16,667 | #1,884 |
| 2003 | 66 | 66 | #16,301 | #1,909 |
| 2002 | 47 | 47 | — | #2,225 |
| 2001 | 49 | 49 | — | #2,124 |
| 2000 | 41 | 41 | — | #2,341 |
| 1999 | 45 | 45 | — | #2,103 |
| 1998 | 48 | 48 | — | #1,992 |
| 1997 | 48 | — | #11,096 | #2,136 |
| 1996 | 36 | — | — | #2,259 |
| 1995 | 27 | — | — | #2,697 |
| 1994 | 38 | — | — | #2,126 |
| 1993 | 26 | — | — | #2,720 |
| 1992 | 17 | — | — | #3,634 |
| 1991 | 17 | — | — | #3,485 |
| 1990 | 8 | — | — | #5,919 |
| 1989 | 16 | — | — | #3,480 |
| 1988 | 11 | — | — | #4,211 |
| 1987 | 12 | — | — | #3,765 |
| 1986 | 11 | — | — | #3,925 |
| 1984 | 7 | — | — | #5,068 |
| 1982 | 5 | — | — | #6,537 |
| 1979 | 7 | — | — | #4,926 |
| 1977 | 5 | — | — | #5,997 |
| 1971 | 12 | — | #6,727 | #5,024 |
| 1969 | 5 | — | — | #4,497 |
| 1968 | 5 | — | — | #4,227 |
| 1959 | 6 | — | — | #3,670 |