# Cillian (first name)

Source: https://namelineage.com/first-name/cillian/  
Publisher: Name Lineage. US counts from the Social Security Administration; England and Wales counts from the Office for National Statistics; meaning and etymology from Wiktionary. Data updated 2026-11-11.

| Field | Value |
|---|---|
| Usually given to | boys |
| Origin | not recorded |
| Meaning | not recorded |
| Pronunciation | not recorded |
| Nicknames | none recorded |
| Variant spellings | none recorded |
| US babies named this | 4,090 since 1880 |
| Boys / girls in the US | 4,084 / 6 (0% girls) |
| Babies in England and Wales | 2,536, 1996 to 2025 |

## Popularity

The last 15 years of each series. A year is missing when too few babies were given the name for the agency to publish it: five in the US, three in England and Wales.

### United States, girls

| Year | Babies | Rank |
|---|---|---|
| 2024 | 6 | 13,845 |

### United States, boys

| Year | Babies | Rank |
|---|---|---|
| 2011 | 66 | 2,040 |
| 2012 | 73 | 1,946 |
| 2013 | 77 | 1,853 |
| 2014 | 87 | 1,734 |
| 2015 | 121 | 1,418 |
| 2016 | 177 | 1,107 |
| 2017 | 170 | 1,126 |
| 2018 | 193 | 1,052 |
| 2019 | 186 | 1,078 |
| 2020 | 228 | 957 |
| 2021 | 341 | 747 |
| 2022 | 353 | 736 |
| 2023 | 477 | 594 |
| 2024 | 668 | 463 |
| 2025 | 595 | 507 |

### England and Wales, boys

| Year | Babies | Rank |
|---|---|---|
| 2011 | 38 | 798 |
| 2012 | 45 | 734 |
| 2013 | 44 | 730 |
| 2014 | 66 | 550 |
| 2015 | 104 | 404 |
| 2016 | 119 | 380 |
| 2017 | 151 | 324 |
| 2018 | 199 | 255 |
| 2019 | 193 | 254 |
| 2020 | 202 | 238 |
| 2021 | 168 | 274 |
| 2022 | 227 | 223 |
| 2023 | 241 | 204 |
| 2024 | 285 | 177 |
| 2025 | 230 | 217 |

## How to read these numbers

A count is babies registered with that name in that year, not people alive now, so a name common a century ago can have a large total and few recent births.