A LITTLE UNCOMMON. ENTIRELY YOURS.
Meaning, origin and pronunciation, with published usage by place and year.
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Meaning uncertain in the Irish Cillian tradition; church and battle are documented accounts.
The exact Kilian entry links the name through Killian to Irish Cillian. The reviewed Cillian-family accounts differ between a favoured church/monastery explanation and older church/battle proposals. The relationship supports a qualified account of the uncertainty.
Irish-linked Killian variant
The English entry explicitly records an Irish masculine name and a Killian variant, without a reviewed deeper translation.
Not yet published for this spelling.
Counts apply only to the exact spelling, place, year and recorded usage shown. Places are separate; these figures are never added into a worldwide total. Missing or suppressed records never mean zero.
| Place | Year | Recorded usage | Published births | Rank | Notes |
|---|---|---|---|---|---|
| Canada | 2025 | Boys | 33 · preliminary | 799 | 2025 figures are preliminary. Quebec counts below five are randomly imputed by the publisher before national aggregation. Accents are removed in the source; this profile was matched only where the catalog spelling was unambiguous. Unpublished values are unknown, not zero. Rank basis: source published. |
| France | 2025 | Boys | 10 (rounded to 5) | 2605 | Counts are rounded to the nearest multiple of five. Ranks use unrounded publisher counts with randomly ordered ties; equally rounded counts can have different ranks. National coverage excludes Mayotte before 2012. Missing years are unavailable, not zero. Automated direction labels are withheld for this rounded-count series. Rank basis: source published. |
| England & Wales | 2025 | Boys | 23 | 1226 | Source-reported counts; unpublished names are not zero. Rank basis: source published. |
| Northern Ireland | 2018 | Boys | 3 | 416 | Source-reported counts; unpublished names are not zero. Rank basis: source published. |
| Scotland | 2022 | Boys | 3 | 703 | Source-reported counts; unpublished names are not zero. Rank basis: source published. |
| Ireland | 2025 | Boys | 3 | 829 | Names below three occurrences are unpublished. Accent recording changed in 2018; comparisons across that boundary may not describe the same spelling coverage. Counts refer to registrations in the year. Missing years are unavailable, not zero. Rank basis: source published. |
| United States | 2019 | Girls | 6 | 13799 | Source-reported counts; unpublished names are not zero. Rank basis: calculated from published counts. |
| United States | 2025 | Boys | 177 | 1166 | Source-reported counts; unpublished names are not zero. Rank basis: calculated from published counts. |
Canada, Ireland and France coverage includes confidently matched existing profiles only; unmatched spellings are awaiting review. French counts are rounded to five.
Open an entry for its source, credit, licence and full qualifications. Different name traditions remain separate.
Checked against cited source
The exact German given-name section documents male personal-name use and borrowing from Irish Cillian. This language label is separate from the older Irish origin. Credit: Wiktionary contributors. Sources: https://en.wiktionary.org/w/index.php?title=Kilian&oldid=90457499. License: CC BY-SA 4.0. Rights and license links: CC BY-SA 4.0 for Wiktionary-derived material (https://creativecommons.org/licenses/by-sa/4.0/). Adaptation: Rare Baby Names summarized the supported name relationship or root account, retaining uncertainty and each source’s rights. No article passage, image or recording reproduced.
Credit: Wiktionary contributors. Adapted by Rare Baby Names: wording shortened and name contexts separated. Recorded pronunciations are shown as published.
This adapted text is available under CC BY-SA 4.0.
CC BY-SA 4.0
Checked against cited source
The exact Kilian entry links the name through Killian to Irish Cillian. The reviewed Cillian-family accounts differ between a favoured church/monastery explanation and older church/battle proposals. The relationship supports a qualified account of the uncertainty. Credit: Babyverden, exact Kylian/Cillian name articles, credited name researcher Ivar Utne; Wiktionary contributors. Sources: https://en.wiktionary.org/w/index.php?title=Kilian&oldid=90457499; https://en.wiktionary.org/w/index.php?title=Killian&oldid=83882237; https://www.babyverden.no/navn/cillian/; https://www.babyverden.no/navn/kylian/. License: CC BY-SA 4.0 (Wiktionary-derived material); other source rights retained. Rights and license links: Babyverden source rights retained (https://www.babyverden.no/); CC BY-SA 4.0 for Wiktionary-derived material (https://creativecommons.org/licenses/by-sa/4.0/). Adaptation: Rare Baby Names summarized the supported name relationship or root account, retaining uncertainty and each source’s rights. No article passage, image or recording reproduced.
Credit: Wiktionary contributors. Adapted by Rare Baby Names: wording shortened and name contexts separated. Recorded pronunciations are shown as published.
This adapted text is available under CC BY-SA 4.0.
CC BY-SA 4.0 (Wiktionary-derived material); other source rights retained
Checked against cited source
The exact German personal-name entry records these alternatives. They differ in whether the middle vowel forms a separate syllable. Neither is presented as an English reading. Credit: Wiktionary contributors. Sources: https://en.wiktionary.org/w/index.php?title=Kilian&oldid=90457499. License: CC BY-SA 4.0. Rights and license links: CC BY-SA 4.0 for Wiktionary-derived material (https://creativecommons.org/licenses/by-sa/4.0/). Adaptation: Rare Baby Names summarized the supported name relationship or root account, retaining uncertainty and each source’s rights. No article passage, image or recording reproduced.
Credit: Wiktionary contributors. Adapted by Rare Baby Names: wording shortened and name contexts separated. Recorded pronunciations are shown as published.
This adapted text is available under CC BY-SA 4.0.
CC BY-SA 4.0
Checked against cited source
The English entry explicitly records an Irish masculine name and a Killian variant, without a reviewed deeper translation.
Credit: Wiktionary contributors. Adapted by Rare Baby Names: wording shortened and name contexts separated. Recorded pronunciations are shown as published.
This adapted text is available under CC BY-SA 4.0.
CC BY-SA 4.0
Checked against cited source
Relationship explicitly recorded in the reviewed given-name section; spellings remain separate in popularity statistics.
Credit: Wiktionary contributors. Adapted by Rare Baby Names: wording shortened and name contexts separated. Recorded pronunciations are shown as published.
This adapted text is available under CC BY-SA 4.0.
CC BY-SA 4.0
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Attribution: Source: NISRA : Website: www.nisra.gov.uk
License: Open Government Licence v3.0
Attribution: (C) Crown copyright. Data supplied by National Records of Scotland.
License: Open Government Licence v3.0
Attribution: Source: Office for National Statistics licensed under the Open Government Licence
License: Open Government Licence v3.0
Attribution: U.S. Social Security Administration
Credit: Statistics Canada, Table 17-10-0147-01, 1991–2025, released 23 September 2026.
License: Statistics Canada Open Licence
Adaptation: Adapted from Statistics Canada, First names at birth by sex at birth, selected indicators, Table 17-10-0147-01, reference years 1991–2025. This does not constitute an endorsement by Statistics Canada of this product.
Credit: Central Statistics Office, Ireland, VSA50 and VSA60, updated 27 February 2026.
License: CC BY 4.0
Adaptation: Adapted by Rare Baby Names: joined the published count and rank indicators and matched unambiguous existing spellings. Source values retained.
Credit: Source : Insee, Fichier des prénoms, updated 16 July 2026.
License: Open Licence 2.0 (Etalab)
Adaptation: Adapted by Rare Baby Names: column names and sex codes mapped and unique case-only spellings matched to existing profiles. Published rounded counts and ranks retained.
