Theodorus

given name · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

Theodorus is a given name written in the Latin script, with more bearers in the United States than in any other country. In Jamaica it is the 22nd most common given name. Recorded meaning: From Ancient Greek Θεόδωρος (Theódōros), from Θεός (Theós, “God”) and θεός (theós, “god”) + δῶρον (dôron, “gift”).

rarermore common
  • NLNetherlands1 in 131(measured from records)
  • CYCyprus1 in 474as Θεοδωρος
  • SESweden1 in 824as Theodor

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Where a country counts another spelling of the name rather than Theodorus itself, the figure is that spelling’s, and it is named. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

141,175 named Theodore, 2020

#842 (measured from records)

of 15M given names

4 (measured from records)

recorded for this name

Sources
533 (measured from records)

Highest-authority source

1 in 131 (inferred from the name graph)

Netherlands

measured from records inferred from the name graph

Spellings & scripts(measured from records)

TheodoreLatin(measured from records)
ΘεοδωροςGreek(measured from records)
ธโอดอรThai(measured from records)
시어도어Hangul(measured from records)

2 other spellings are counted as the same name:

Locally spelled Theodore in US United States, GB United Kingdom, IT Italy and 2 more, Theodor in DE Germany, NO Norway, SE Sweden and Theodoros in CY Cyprus.

Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.

Meaning & origin(measured from records)

Derivation of Theodorus: each step is the form the one above it came from.
Theodorus
  1. Ancient GreekΘεόδωροςTheódōros(measured from records)
  2. Ancient Greek rootΘεόςTheós“God”(measured from records)

From Ancient Greek Θεόδωρος (Theódōros), from Θεός (Theós, “God”) and θεός (theós, “god”) + δῶρον (dôron, “gift”).

Sources 3

  • 국립국어원 외래어 표기 용례 자료 (NIKL loanword/foreign-name transcription examples)
  • Wiktionary
  • Nordic Names

Attested across 21 languages in the etymology graph.

Where in the world(measured from records)

Theodorus counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.

Sorted by bearers: national registers' counts, and Mondonomo's estimates (≈, est.) where no register counts.

Where Theodorus is recorded, by country
CountryMost common spellingSources
US United States#342141,175as Theodore1 in 2.4K141KTheodore533
NL Netherlands#568131,5611 in 131131KTheodorus80
DE Germany#374≈28,000 est.≈1 in 2.9K1Theodor160
GB United Kingdom#425≈23,000 est.≈1 in 2.8K2.8KTheodore202
IT Italy#692≈16,000 est.≈1 in 3.9K10Theodore38
SE Sweden#99212,377as Theodor1 in 82412KTheodor54
NO Norway—5,460as Theodor1 in 1K20KTheodor33
DK Denmark—4,020as Theodor1 in 1.5K4KTheodore32
CY Cyprus#1432,672as Θεοδωρος1 in 4742.7KTheodoros71
JM Jamaica#22≈1,800 est.≈1 in 1.6K—Theodore12

141,175 people counted by Census Bureau — First Name Frequency 2020 by sex, 2020. Exact figures are national registers' own counts, while figures marked ≈ and est. are Mondonomo’s estimates, counted from our sources and calibrated against those registers; hover one for how far to trust it in that country. A dash means neither exists.

Registers cited: Census Bureau — First Name Frequency 2020 by sex; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); ONS — Baby names England and Wales (2024); the de-duesseldorf-vornamen register; SSB PxWebApi — Persons/Last names by year (StatBank tables 10501/12891); SSB — Navnesøk (name-search service, living population); Skatteverket — Sök hur många som har ett visst namn (living population); ISTAT — Contanomi newborn per-name series (1999–2024, JSONP backend); Danmarks Statistik — Hvor mange hedder...? (living-population name counts); CYSTAT — Name frequency (2011 Population Census). Figures without a register are Mondonomo estimates; see Methodology.

Country figures for a list of names, at full precision, are available under licence rather than by scraping this table (how that works).

Other names spelled this way(inferred from the name graph)

Theodorus is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • Swahili given name3 spellings in the group

    Most recorded in South Africa, United States, Netherlands

    Languages: Swahili, Southern Sotho

    Also written Theödorus

50 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Other recorded senses(measured from records)

Theodorus is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Latin, a male given name, equivalent to English Theodore

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In ang, alternative form of Þeodorus

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

Notable people with this name(measured from records)

500100015002000Theodore Rshtuni, b. 590Theodore II, b. 840Theodorus van Gogh, b. 1822Gezelle, b. 1830Theo Heemskerk, b. 1852Theo van Gogh, b. 1857Theo Jansen, b. 1948Adrianus Franciscus Theodorus van der Heijden, b. 1951Wesley Hoedt, b. 1994

The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).

Evidence(measured from records)

Attested in 26 sources across 18 countries.

Official registers attesting Theodorus
CountryRegisterYearCountRank
NL NetherlandsMeertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018)—131K#16
NL NetherlandsMeertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017)—42K#47
NL NetherlandsMeertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018)—946#1,333
US United StatesCensus Bureau — First Name Frequency 2020 by sex2020164#43,063
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—112#7,915
SE SwedenSCB — Namnstatistik (to 2023)201927—
SE SwedenSCB — Namnstatistik (to 2023)201827—
SE SwedenSCB — Namnstatistik (to 2023)201627—
SE SwedenSCB — Namnstatistik (to 2023)201527—
SE SwedenSCB — Namnstatistik (to 2023)201027—
SE SwedenSCB — Namnstatistik (to 2023)202026—
SE SwedenSCB — Namnstatistik (to 2023)201726—

Reference works 3

  • Nişanyan Adlar (Turkish given-name national-registry frequency)
  • Wikipedia given-name tokens
  • Wikidata name items (native-script + romanized given/family names)

These works list the name; their figures are licensed and are not reproduced here.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Theodorus mean, and where does it come from?
From Ancient Greek Θεόδωρος (Theódōros), from Θεός (Theós, “God”) and θεός (theós, “god”) + δῶρον (dôron, “gift”). Recorded by 국립국어원 외래어 표기 용례 자료 (NIKL loanword/foreign-name transcription examples) and Wiktionary and 1 other source.
What are other forms of the name Theodorus?
In the etymology graph, Theodore, Ted and Teodoro are forms of the same name in other languages; Theo is a recorded short or pet form.
Is Theodorus a male or female name?
Theodorus is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
In which country does Theodorus have the most bearers?
In the United States, the national register counted about 141 thousand people named Theodore, more than in any other country we hold.
Where is Theodorus most common?
Measured as a share of residents rather than as a count, Theodorus is densest in the Netherlands — about 1 in 131 people — even though United States holds more of our records for it.
How common is the name Theodorus?
In the Netherlands, the national register counted 131,561 people named Theodorus, about 1 in 131 residents.
How common is Theodorus compared with other names?
In the United States, Theodorus is the 342nd most common given name of 2,815,431 given names recorded there.

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/theodorus

The same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. It takes a free API key (1,000 requests a day), and bulk access is licensed separately.

About this data

measured from records inferred from the name graph machine-generated

These figures come from the data snapshot of and will change as it is rebuilt.

Statistics are aggregated from the Mondonomo name corpus; related names and etymology are inferred from the name graph; pronunciation and any machine-marked transliterations are model-generated. Read how the numbers are made, including their known failure modes, and where the data comes from.

Reference works we consult — surname dictionaries, official name registers, Wikidata and Wiktionary — are named directly, beside the claims they support. The per-country source counts also include datasets of person records: we publish how many there are and their authority tier, but not their names.

Cite this page Mondonomo, “Theodorus” — the 342nd most common given name in United States. Data snapshot 2026-10-10.

See how Theodorus parses inside a full name →