A LITTLE UNCOMMON. ENTIRELY YOURS.
Meaning, origin and pronunciation, with published usage by place and year.
Checking your saved choices…
Share this name or preview its baby card in Discover.
Gift of God, when short for Theodore
Theo is documented as a short form of Theodore, but also of Theobald, Theophilus, Theodoric or Theodora. Theodore’s Greek components mean god and gift. This interpretation applies specifically to the Theodore route; it is not a universal gloss for every Theo.
English short form, with several full-name traditions
Usually short for Theodore, but also recorded for Theobald, Theophilus, Theodoric or Theodora. Their meanings and linguistic histories differ.
/ˈθioʊ/
General American English. TH is the sound in thin.
Recorded English reading, as published. Accents and preferred pronunciations can differ.
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 | Girls | 5 · preliminary | 3478 | 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 Unpublished values are unknown, not zero.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. |
| Canada | 2025 | Boys | 953 · preliminary | 15 | 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 Unpublished values are unknown, not zero.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 | 50 (rounded to 5) | 827 | 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| England & Wales | 2024 | Girls | 3 | 5891 | Source-reported counts; unpublished names are not zero. Rank basis: source published. |
| England & Wales | 2025 | Boys | 2,398 | 12 | Source-reported counts; unpublished names are not zero. Rank basis: source published. |
| Northern Ireland | 2025 | Boys | 106 | 7 | Source-reported counts; unpublished names are not zero. Rank basis: source published. |
| Scotland | 2025 | Boys | 243 | 6 | Source-reported counts; unpublished names are not zero. Rank basis: source published. |
| Ireland | 2025 | Boys | 189 | 21 | 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 | Girls | 21 | 5722 | Source-reported counts; unpublished names are not zero. Rank basis: calculated from published counts. |
| United States | 2025 | Boys | 3,945 | 82 | 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
Theo is documented as a short form of Theodore, but also of Theobald, Theophilus, Theodoric or Theodora. Theodore’s Greek components mean god and gift. This interpretation applies specifically to the Theodore route; it is not a universal gloss for every Theo. Credit: Wiktionary contributors. Adapted and condensed by Rare Baby Names; CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). No source audio 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
Checked against cited source
English given-name relationship. These 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
Checked against cited source
Usually short for Theodore, but also recorded for Theobald, Theophilus, Theodoric or Theodora. Their meanings and linguistic histories differ.
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
General American English. TH is the sound in thin.
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
Supporting etymology for Theo when used as a short form of Theodore. Other documented longer-name routes retain their own histories and meanings. Credit: Wiktionary contributors. Adapted and condensed by Rare Baby Names; CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). No source audio 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
Checked against cited source
Recorded alternate form in the handbook. Each spelling keeps its own popularity records; pronunciation and cultural usage may differ. Credit: Eva Brylla and Katharina Leibring, Förnamn i Sverige – kortfattat namnlexikon, second edition (Isof, 2026). Source: https://isof.diva-portal.org/smash/get/diva2:2041530/FULLTEXT01.pdf#page=377. License: Original factual summary; source rights retained (https://isof.diva-portal.org/smash/get/diva2:2041530/FULLTEXT01.pdf). Copyright remains with Charlotta Seiler Brylla, Katharina Leibring and Isof. Adaptation: Rare Baby Names summarized explicit alternate-form relationships in original wording; no source prose, images or recordings are reproduced.
Original factual summary; source rights retained
View statistics source (link unavailable)
View statistics source (link unavailable)
View statistics source (link unavailable)
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: 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.
