Cillian
Rank in 2025
—
recorded as girls
#507
recorded as boys
Babies in 2025
595
boys 595
Peak year
2024
668 babies recorded as boys
All-time total
4,090
since 1995
Born a Cillian? See how many share your birth year.
Any year from 1880 to 2025.
Babies per 1,000 (same sex), 1880–2025
Recorded as girls
Recorded as boys
Cillian was most popular in 2024, when 668 babies recorded as boys got the name (0.39 per 1,000). In 2025, 595 babies were named Cillian, ranking #507 for babies recorded as boys. Compared with 2018–2020, it's up 195%.
Show every year
| Year | Girls | Rank | Boys | Rank |
|---|---|---|---|---|
| 2025 | <5 | — | 595 | 507 |
| 2024 | 6 | 13477 | 668 | 463 |
| 2023 | <5 | — | 477 | 594 |
| 2022 | <5 | — | 353 | 735 |
| 2021 | <5 | — | 341 | 747 |
| 2020 | <5 | — | 228 | 957 |
| 2019 | <5 | — | 186 | 1078 |
| 2018 | <5 | — | 193 | 1052 |
| 2017 | <5 | — | 170 | 1126 |
| 2016 | <5 | — | 177 | 1105 |
| 2015 | <5 | — | 121 | 1416 |
| 2014 | <5 | — | 87 | 1730 |
| 2013 | <5 | — | 77 | 1851 |
| 2012 | <5 | — | 73 | 1942 |
| 2011 | <5 | — | 66 | 2035 |
| 2010 | <5 | — | 54 | 2354 |
| 2009 | <5 | — | 52 | 2451 |
| 2008 | <5 | — | 51 | 2467 |
| 2007 | <5 | — | 39 | 2974 |
| 2006 | <5 | — | 42 | 2744 |
| 2005 | <5 | — | 10 | 7096 |
| 2004 | <5 | — | 8 | 8143 |
| 2003 | <5 | — | <5 | — |
| 2002 | <5 | — | <5 | — |
| 2001 | <5 | — | 6 | 9243 |
| 2000 | <5 | — | <5 | — |
| 1999 | <5 | — | 5 | 9912 |
| 1998 | <5 | — | <5 | — |
| 1997 | <5 | — | <5 | — |
| 1996 | <5 | — | <5 | — |
| 1995 | <5 | — | 5 | 8868 |
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Other spellings
Names like Cillian
Names whose popularity rose and fell over the same years.
Where Cillian is most popular
- Massachusetts3.4×
- New York1.9×
- Pennsylvania1.7×
- Colorado1.6×
- Washington1.6×
Times more common than the national rate, 2016–2025.
Recorded as girls <1% · boys 100% across all years