Ro
loc · Latin script
Recorded for both men and women· direction only, no split published
Ro is a name written in the Latin script, with more bearers in the United States than in any other country.
- DEGermany≈1 in 20K(inferred from the name graph)
- USUnited States1 in 6.3Kas Roy
- IEIreland≈1 in 6.6Kas Roe
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 Ro 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)
- 2 (measured from records)
- Sources
- 464 (measured from records)
- ≈1 in 20K (inferred from the name graph)
53,159 named Roy, 2010
recorded for this name
Highest-authority source
Germany, est.
measured from records inferred from the name graph
Spellings & scripts(measured from records)
Locally spelled Roe in US United States, GB United Kingdom, AU Australia and 4 more and Roy in IN India.
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.
Sources 2
- YorùbáName Dictionary
- Deshayes, Dictionnaire étymologique du breton (2003)
Attested across 5 languages in the etymology graph.
Where in the world(measured from records)
Ro 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 | ||||
|---|---|---|---|---|---|---|
| US United States | — | 53,159as Roy | 1 in 6.3K | 176K | Roe | 464 |
| IN India | — | 37,509as Roy | 1 in 35K | 38K | Roy | 58 |
| GB United Kingdom | #719 | ≈8,400 est. | ≈1 in 7.8K | 11K | Roe | 208 |
| DE Germany | — | ≈4,000 est. | ≈1 in 20K | listed | Roe | 69 |
| CA Canada | — | ≈2,900 est. | ≈1 in 13K | 10 | Roe | 130 |
| AU Australia | — | ≈2,300 est. | ≈1 in 11K | 62 | Roe | 146 |
| CH Switzerland | — | 1,041as Roy | 1 in 8.1K | 1K | Roe | 19 |
| IE Ireland | #557 | ≈790 est. | ≈1 in 6.6K | — | Roe | 73 |
53,159 people counted by Census Bureau — Surname Frequency 2010, 2010, counting the spelling roy. 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 — First Name Frequency 2020 by sex; Instate — India surnames (clean spellings) from electoral rolls; Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register); NSW BDM — Popular baby names (1952–present); Alberta Open Government — Frequency and Ranking of Baby Names by Year and Gender; BFS — Familiennamen der Wohnbevölkerung (surnames). 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 recorded senses(measured from records)
Ro is also recorded in 6 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In cdo, to earn a living, (meu-séng), (téngfull, overflow, surplus, arrogant a handful, (sidh-ba)
as a wordDictionary of the Foochow Dialect
In pi, nominative singular of ra (“Pali letter 'r'”)
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In lmy, leaf
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Japanese, The hiragana syllable ろ (ro) or the katakana syllable ロ (ro) in Hepburn romanization.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Swedish, to row; to transport oneself in a small boat, with help of oars
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In li, calm, relative quietness (absence of loud sounds)
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)
- Roh Tae-woob. 1932KRnot in their usual namePresident of South Korea from 1988 to 1993
- No Kum-sokb. 1932KPnot in their usual nameNorth Korean Air Force officer (1932–2022)
- Roh Moo-hyunb. 1946KRnot in their usual name16th President of the Republic of Korea (1946–2009)
- Roh Hoe-chanb. 1956KRnot in their usual namePresident of New Progressive Party (1956-2018)
- Ro Khannab. 1976USU.S. Representative from California
- Noh Hong-chulb. 1979KRnot in their usual nameSouth Korean entertainer
- Noh Seon-yeongb. 1989KRnot in their usual nameSouth Korean speed skater
- Roh Jae-wonb. 1993KRnot in their usual nameSouth Korean actor (born 1993)
- Noh Jong-hyunb. 1993KRnot in their usual nameSouth Korean actor
- Roh Jeong-euib. 2001KRnot in their usual nameSouth Korean actress (born 2001)
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 33 sources across 18 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 2.6K | #11,717 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 2.5K | #12,607 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 2K | #13,885 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 727 | #10,091 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 612 | #10,091 |
| GB United Kingdom | Surnames of England and Wales (taliesin-arlein.net, Sept 2002 electoral register) | 2002 | 34 | #64,689 |
| US United States | SSA — National Baby Names (1880–present) | 2021 | 10 | — |
| US United States | SSA — National Baby Names (1880–present) | 2022 | 7 | — |
| US United States | SSA — National Baby Names (1880–present) | 2019 | 7 | — |
| US United States | SSA — National Baby Names (1880–present) | 2015 | 7 | — |
| US United States | SSA — National Baby Names (1880–present) | 2024 | 6 | — |
| US United States | SSA — National Baby Names (1880–present) | 2019 | 6 | — |
Reference works 2
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- 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
- In which country does Ro have the most bearers?
- In the United States, the national register counted about 53 thousand people named Roy, more than in any other country we hold.
- How common is the name Ro?
- In the United States, the national register counted 53,159 people named Roy in 2010, about 1 in 6.3 thousand residents.
- How common is Ro compared with other names?
- In Ireland, Ro is the 557th most common surname of 73,729 surnames recorded there.
What do you want to know about Ro?
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/roThe 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, “Ro” — the 557th most common surname in Ireland. Data snapshot 2026-10-10.