Komatsu
surname · Latin script
Meaning, in Japanese: ‘small pine tree’; found mostly in west-central Japan, the island of Shikoku, and the Ryukyu Islands; an alternate reading found farther east is Omatsu
Recorded for both men and women· direction only, no split published
/koʊˈmɑtˈsu/(machine-generated) pronunciation, model-generated
Komatsu is a surname written in the Latin script, with more bearers in Brazil than in any other country.
- USUnited States1 in 565K(measured from records)
- BRBrazil1 in 218K
- ARArgentina1 in 1.5M
carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.
- Brazil (measured from records)
- Sources
- 148 (measured from records)
- 1 in 218K (inferred from the name graph)
971 people
Highest-authority source
Brazil
measured from records inferred from the name graph
Meaning & origin(measured from records)
‘small pine tree’; found mostly in west-central Japan, the island of Shikoku, and the Ryukyu Islands; an alternate reading found farther east is Omatsu. Several samurai families of various hneages took this surname from any of the various villages of this name.
Sources 1
- Dictionary of American Family Names
Attested across 3 languages in the etymology graph.
How Komatsu is read(measured from records)
Komatsu is one spelling over 3 language communities, and the dictionaries record it differently in 2 of them. Each row is what a source recorded for that language, beside the share of this name’s records the language holds. No single row is the name’s meaning.
- Japanese70%
‘small pine tree’; found mostly in west-central Japan, the island of Shikoku, and the Ryukyu Islands; an alternate reading found farther east is Omatsu. Several samurai families of various hneages took this surname from any of the various villages of this name.
as a nameDictionary of American Family Names
- English16%
Japanese manufacturing co.
as a namePronouncing Dictionary of Proper Names
- Portuguese7.8%
No dictionary in our sources glosses Komatsu in Portuguese.
The share is ours — how much of this name’s records each language holds. The sense beside it is the source’s, quoted and credited, including where it names a gender. We do not publish a gender of our own per language: our records carry one figure for the spelling as a whole.
Where in the world(measured from records)
Komatsu 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 | |||
|---|---|---|---|---|---|
| BR Brazil | 971 | 1 in 218K | 971 | Komatsu | 3 |
| US United States | 589 | 1 in 565K | 589 | Komatsu | 148 |
| AR Argentina | 31 | 1 in 1.5M | 31 | — | 1 |
| ES Spain | 9 | 1 in 5.6M | 9 | — | 1 |
| BE Belgium | 4 | 1 in 2.9M | 4 | — | 2 |
| CH Switzerland | 4 | 1 in 2.1M | 4 | — | — |
971 people counted by IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname). 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; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); RENAPER — Apellidos (person counts, national); INE — Padrón per-token widgets (current living counts, given + apellidos); Familienaam.be — Belgian family-name frequency (population register); 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).
Notable people with this name(measured from records)
- Komatsu Kiyokadob. 1835JPsamurai (1835-1870)
- Midori Komatsub. 1891JPJapanese actor
- Hōsei Komatsub. 1926JPJapanese actor
- Sakyō Komatsub. 1931JPJapanese writer (1931–2011)
- Masao Komatsub. 1942JPJapanese comedian, actor (1942-2020)
- Kazuhiko Komatsub. 1947JPJapanese cultural anthropologist, folklorist (1947-)
- Komatsu Hidekib. 1967JPJapanese Go player
- Miwa Komatsub. 1984JPJapanese contemporary artist (1984-)
- Mikako Komatsub. 1988JPJapanese actress, voice actress and singer
- Nana Komatsub. 1996JPJapanese actress and model
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).
How to address them(machine-generated)
Evidence(measured from records)
Attested in 15 sources across 9 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| BR Brazil | IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname) | — | 971 | #9,529 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 589 | #37,735 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 570 | #41,199 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 555 | #37,688 |
| AR Argentina | RENAPER — Apellidos (person counts, national) | — | 31 | — |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 9 | #126,713 |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 4 | #118,617 |
| BE Belgium | Familienaam.be — Belgian family-name frequency (population register) | 2008 | 4 | #111,262 |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 2
- Dictionary of American Family Names
- Wikipedia surname 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
- What does the name Komatsu mean, and where does it come from?
- ‘small pine tree’; found mostly in west-central Japan, the island of Shikoku, and the Ryukyu Islands; an alternate reading found farther east is Omatsu. Recorded by Dictionary of American Family Names.
- How do you pronounce Komatsu?
- A machine transcription gives /koʊˈmɑtˈsu/ (IPA) for Japanese.
- In which country does Komatsu have the most bearers?
- In Brazil, the national register counted about 971 people named Komatsu, more than in any other country we hold, where it is most often spelled komatsu.
- Where is Komatsu most common?
- Komatsu is densest in Brazil, where the national register counts about 1 in 218 thousand people carrying it.
- How common is the name Komatsu?
- In Brazil, the national register counted 971 people named Komatsu, about 1 in 218 thousand residents.
What do you want to know about Komatsu?
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/komatsuThe 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, “Komatsu”. Data snapshot 2026-10-10.