A Hebrew heel-related root, through the James/Jacob name family; the interpretation varies.
Thiago is a Portuguese spelling of Tiago. Tiago arose by reinterpreting Santiago as São Tiago rather than Santo Iago. The documented James/Jacob family has a Hebrew heel-related formation with several interpretations; a universal supplanter gloss is not asserted.
Origin
Portuguese Santiago back-formation
The Portuguese entry traces this name to a reanalysis of Santiago and records equivalence to English James. Biblical book titles and the personal-name use are distinct.
English pronunciation
Not yet published for this spelling.
Published name usage
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.
Latest published record available for this spelling in each place and recorded usage
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 Unpublished values are unknown, not zero.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
2005
Girls
5 (rounded to 5)
6121
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.
France
2025
Boys
770 (rounded to 5)
79
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
67
578
Source-reported counts; unpublished names are not zero. Rank basis: source published.
Scotland
2024
Boys
3
727
Source-reported counts; unpublished names are not zero.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Names below three occurrences are unpublished.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
2025
Boys
192
1115
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.
Sources & notes
Open an entry for its source, credit, licence and full qualifications. Different name traditions remain separate.
Language of use: Portuguese
Checked against cited source
The exact Portuguese entries explicitly document male personal-name use and the spelling relationship. Credit: Wiktionary contributors, exact Thiago, Tiago entries. Sources: https://en.wiktionary.org/w/index.php?title=Thiago&oldid=82551925; https://en.wiktionary.org/w/index.php?title=Tiago&oldid=87681994. License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Adaptation: Rare Baby Names summarized the documented name route or language-specific relationship. No source audio, images or quotations reused.
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
Meaning: A Hebrew heel-related root, through the James/Jacob name family; the interpretation varies.
Checked against cited source
Thiago is a Portuguese spelling of Tiago. Tiago arose by reinterpreting Santiago as São Tiago rather than Santo Iago. The documented James/Jacob family has a Hebrew heel-related formation with several interpretations; a universal supplanter gloss is not asserted. Credit: Wiktionary contributors, exact Thiago, Tiago, James entries. Sources: https://en.wiktionary.org/w/index.php?title=Thiago&oldid=82551925; https://en.wiktionary.org/w/index.php?title=Tiago&oldid=87681994; https://en.wiktionary.org/w/index.php?title=James&oldid=93542483. License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Adaptation: Rare Baby Names summarized the documented name route or language-specific relationship. No source audio, images or quotations reused.
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
Origin: Portuguese Santiago back-formation
Checked against cited source
The Portuguese entry traces this name to a reanalysis of Santiago and records equivalence to English James. Biblical book titles and the personal-name use are distinct.
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
Related name: James
Checked against cited source
Related English forms with a shared linguistic source; not interchangeable spellings or a nickname claim. Popularity counts remain separate.
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
Spelling variant: Thiago
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.
Statistics Canada, Table 17-10-0147-01, 1991–2025, released 23 September 2026.
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.
Central Statistics Office, Ireland, VSA50 and VSA60, updated 27 February 2026.
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.
Source : Insee, Fichier des prénoms, updated 16 July 2026.
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.