Theodosíou
surname · Latin script
Theodosíou is a surname written in the Latin script, with more bearers in Greece than in any other country. In Cyprus it is the 83rd most common surname. Theodosíou is also written Θεοδοσιου in Greek.
- CYCyprus≈1 in 2.6Kfew records(inferred from the name graph)
- GRGreece≈1 in 5.7K
- ZASouth Africa≈1 in 120Kfew records
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 Theodosíou 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.
- Greece (inferred from the name graph)
- 2 (measured from records)
- Record sources
- 92 (measured from records)
- ≈1 in 2.6K (inferred from the name graph)
≈1,800 people, est.
recorded for this name
corpus datasets behind its best-documented spelling
strongest: highest-authority source
Cyprus, est.
measured from records inferred from the name graph
Theodosíou in other scripts: Greek
(measured from records)2 other spellings are counted as the same name:
Locally spelled Theodosiou in US United States, GB United Kingdom, AU Australia and 3 more and Θεοδοσιου in GR Greece.
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
No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.
Attested across 12 languages in the etymology graph.
Where the surname Theodosíou is found
(measured from records)Theodosíou 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.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| GR Greece | — | ≈1,800 est. | ≈1 in 5.7K | 13 | Θεοδοσιου | 66 |
| ZA South Africa | — | ≈530 est. | ≈1 in 120K | — | Theodosiou | 9 |
| CY Cyprus | #83 | ≈530 est. | ≈1 in 2.6K | — | Theodosiou | 53 |
| GB United Kingdom | — | ≈140 est. | ≈1 in 485K | 265 | Theodosiou | 72 |
| US United States | — | 127 | 1 in 2.6M | 127 | Theodosiou | 92 |
| AU Australia | — | ≈100 est. | ≈1 in 261K | — | Theodosiou | 55 |
| EE Estonia | — | ≈7 est. | ≈1 in 204K | listed | Theodosiou | 2 |
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: Διαύγεια — directory of signing officials (organization → signers); Census Bureau — Surname Frequency 2010; Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register). 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).
Evidence
(measured from records)No register attests this spelling yet
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- Which countries have the most people with the surname Theodosíou?
- Mondonomo estimates about 1.8 thousand people named Theodosíou in Greece, more than in any other country we hold, where it is most often spelled θεοδοσιου. After it come South Africa, Cyprus, United Kingdom and United States; the country table on this page ranks them.
- How common is the name Theodosíou?
- In the United States, the national register counted 127 people named Theodosíou in 2010, about 1 in 2.6 million residents.
- How common is Theodosíou compared with other names?
- In Cyprus, Theodosíou is the 83rd most common surname of 24,832 surnames recorded there.
What do you want to know about Theodosíou?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/theodos%C3%ADouThe 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), which returns what this page shows everyone; the full country table, every register citation and the year-by-year series come with a licensed key, as does bulk access.
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, “Theodosíou” — the 83rd most common surname in Cyprus. Data snapshot 2026-10-13.