Masayo
given name · Latin script
Recorded as a female name· opposite-gender records fall within measured source noise
Masayo is a given name written in the Latin script, with more bearers in the United States than in any other country.
- USUnited States1 in 973K(measured from records)
- BRBrazil1 in 8.5M
- PLPoland1 in 19M
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 Masayo 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
- 9 (measured from records)
- 1 in 973K (inferred from the name graph)
342 people, 2020
recorded for this name
Highest-authority source
United States
measured from records inferred from the name graph
Spellings & scripts(measured from records)
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 2 languages in the etymology graph.
Where in the world(measured from records)
Masayo 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 | 342 | 1 in 973K | 335 | Masayo | 5 |
| BR Brazil | 25 | 1 in 8.5M | 25 | — | — |
| TH Thailand | ≈5 est. | ≈1 in 13M | #485,118 | Masayo | 9 |
| PL Poland | 2 | 1 in 19M | 2 | — | — |
| CL Chile | — | — | 1 | — | — |
342 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; IBGE — names by decade (Kaggle mirror); dane.gov.pl — PESEL given names (first + second name position, 2026-01-20); dane.gov.pl — PESEL living persons (names); SRCEI — Nombres más comunes (guaguas, 1920–2021). 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)
Masayo is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Spanish, of, from or relating to Masaya
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)
- Masayo Segawab. 1884JPJapanese pediatrician (1884-1961)
- Masayo Duusb. 1938JPAmerican nonfiction writer (1938-2022)
- Masayo Koikeb. 1959JPJapanese novelist and poet
- Masayo Odagib. 1963JPMayor of Takahagi, Ibaraki, Japan
- Masayo Toriyamab. 1968JPJapanese translator and teacher
- Masayo Tanabub. 1969JPJapanese politician
- Oniyakko Tsubakib. 1972JPnot in their usual nameJapanese owarai tarento and tarento
- Masayo Hayakawab. 1976JPJapanese announcer
- Masayo Matsumurab. 1981JPJapanese announcer
- Masayo Minamib. 1983JPJapanese announcer
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 11 sources across 5 countries.
Reference works 2
- Dictionary of American Family Names
- Wikipedia given-name tokens
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
- Is Masayo a male or female name?
- Masayo is a female 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 Masayo have the most bearers?
- In the United States, the national register counted about 342 people named Masayo, more than in any other country we hold, where it is most often spelled masayo.
- Where is Masayo most common?
- Masayo is densest in the United States, where the national register counts about 1 in 973 thousand people carrying it.
- How common is the name Masayo?
- In the United States, the national register counted 342 people named Masayo in 2020, about 1 in 973 thousand residents.
What do you want to know about Masayo?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/masayoThe same payload this page is built from: spellings and scripts, countries and languages, related names, and the registers that attest the form. Rate-limited for casual use; a free API key gives 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, “Masayo”. Data snapshot 2026-10-10.