Ioannou
surname · Latin script
Recorded for both men and women· direction only, no split published
Ioannou is a surname written in the Latin script, with more bearers in Cyprus than in any other country, where it is the most common surname. Recorded meaning: Borrowed from Greek Ιωάννου (Ioánnou).
- CYCyprus≈1 in 448(inferred from the name graph)
- GRGreece≈1 in 9.7K
- AUAustralia≈1 in 45K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- Cyprus (inferred from the name graph)
- 2 (measured from records)
- Sources
- 170 (measured from records)
- ≈1 in 448 (inferred from the name graph)
≈2,800 people, est.
recorded for this name
Highest-authority source
Cyprus, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
One other spelling is counted as the same name:
Locally spelled Ιωαννου 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(measured from records)
Borrowed from Greek Ιωάννου (Ioánnou).
Sources 1
Attested in 1 language in the etymology graph.
Where in the world(measured from records)
Ioannou 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 | ||||
|---|---|---|---|---|---|---|
| CY Cyprus | #1 | ≈2,800 est. | ≈1 in 448 | — | Ioannou | 127 |
| GR Greece | #244 | ≈1,100 est. | ≈1 in 9.7K | 54 | Ιωαννου | 106 |
| GB United Kingdom | — | ≈1,000 est. | ≈1 in 65K | — | Ioannou | 133 |
| AU Australia | — | ≈560 est. | ≈1 in 45K | — | Ioannou | 114 |
| US United States | — | 522 | 1 in 637K | 577 | Ioannou | 170 |
| FI Finland | — | 47 | 1 in 119K | 47 | — | 3 |
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 — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; Διαύγεια — directory of signing officials (organization → signers); DVV — Nimipalvelu (Finnish name service, per-name lookup). 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).
Notable people with this name(measured from records)
- Pavlos Ioannoub. 1824GRGreek physician and university professor
- Tellos Agrasb. 1899GRnot in their usual nameGreek writer and poet
- Fifis Ioannoub. 1914CYGreek Cypriot politician and journalist
- Giorgos Ioannoub. 1927GRGreek writer (1927-1985)
- Dakis Joannoub. 1939CYnot in their usual nameGreek entrepreneur and art collector
- Susan Ioannoub. 1944CACanadian poet (born 1944)
- John Ioannoub. 1953CACanadian actor
- Marios Joannou Eliab. 1978CYnot in their usual nameCypriot composer, academic and arts administrator
- Nicky Ioannoub. 1987GBEnglish footballer (born 1987)
- Nikolas Ioannoub. 1995CYCypriot professional footballer
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 21 sources across 12 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 577 | #40,800 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 522 | #41,657 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 412 | #48,196 |
| FI Finland | DVV — Nimipalvelu (Finnish name service, per-name lookup) | — | 47 | #23,921 |
| FI Finland | DVV — Sukunimitilasto (Finnish surnames register) | — | 27 | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 3
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikipedia surname 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 Ioannou mean, and where does it come from?
- Borrowed from Greek Ιωάννου (Ioánnou). Recorded by Wiktionary.
- In which country does Ioannou have the most bearers?
- Mondonomo estimates about 2.8 thousand people named Ioannou in Cyprus, more than in any other country we hold, where it is most often spelled ioannou.
- How common is the name Ioannou?
- In the United States, the national register counted 522 people named Ioannou in 2010, about 1 in 637 thousand residents.
- How common is Ioannou compared with other names?
- In Cyprus, Ioannou is the most common surname of 24,832 surnames recorded there.
What do you want to know about Ioannou?
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/ioannouThe 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, “Ioannou” — the most common surname in Cyprus. Data snapshot 2026-10-10.