Saito

surname · Latin script

Recorded for both men and women· direction only, no split published

Saito is a surname written in the Latin script, with more bearers in Brazil than in any other country. Recorded meaning: Borrowed from Japanese 斎藤 (Saitō).

rarermore common
  • USUnited States1 in 76K(measured from records)
  • BRBrazil1 in 31K
  • FIFinland1 in 59K

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)

6,940 people

Sources
244 (measured from records)

Highest-authority source

1 in 31K (inferred from the name graph)

Brazil

measured from records inferred from the name graph

Name dossier (print, CSV)

Meaning & origin(measured from records)

Borrowed from Japanese 斎藤 (Saitō).

Sources 1

Attested across 2 languages in the etymology graph.

Where in the world(measured from records)

Saito 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.

Where Saito is recorded, by country
CountryMost common spellingSources
BR Brazil6,9401 in 31K6.9KSaito6
US United States4,3671 in 76K4.4KSaito244
AR Argentina1281 in 355K128—1
FI Finland951 in 59K95—2
ES Spain801 in 625K80—8
SE Sweden501 in 204K50—2
CH Switzerland421 in 200K42Saito7

6,940 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); DVV — Nimipalvelu (Finnish name service, per-name lookup); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Skatteverket — Sök hur många som har ett visst namn (living population); 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 names spelled this way(inferred from the name graph)

Saito is also recorded as 3 other names, grouped separately because the records behind them do not connect to the one described above.

  • a separate name7 spellings in the group

    Also written Saíto, Saitô, Saitō, Saitö, Saïto

  • Thai surname29 spellings in the group

    Most recorded in Thailand, United States, Laos, Philippines

    Languages: Thai, Lao

    Also written สายโท, ไซโตะ, ไซโต, ไซโต้, ใสโต

  • Hindi surname3 spellings in the group

    Most recorded in United States, United Kingdom, Malaysia, India

    Languages: Hindi, Urdu

    Also written Saitô

60 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Notable people with this name(measured from records)

14001600180020002200Saitō Dōsan, b. 1494Saitō Hajime, b. 1844Saito Makoto, b. 1858Takao Saito, b. 1929Fumio Saitō, b. 1932Atsuo Saitō, b. 1940Tetsuo Saito, b. 1952James Saito, b. 1955Renhō, b. 1967Nagisa Saitō, b. 2003

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 29 sources across 20 countries.

Official registers attesting Saito
CountryRegisterYearCountRank
BR BrazilIBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname)—6.9K#1,748
US United StatesCensus Bureau — Surname Frequency 201020104.4K#7,613
US United StatesCensus Bureau — Surname Frequency 200020004.2K#7,249
US United StatesCensus Bureau — Surname Frequency 202020203.6K#8,817
AR ArgentinaRENAPER — Apellidos (person counts, national)—128—
FI FinlandDVV — Nimipalvelu (Finnish name service, per-name lookup)—95#13,287
ES SpainINE — Apellidos más frecuentes (Padrón Municipal)—80#32,339
ES SpainINE — Padrón per-token widgets (current living counts, given + apellidos)—80#32,124
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—50#12,650
CH SwitzerlandBFS — Familiennamen der Wohnbevölkerung (surnames)202442#21,267
US United Stateswru 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 Saito mean, and where does it come from?
Borrowed from Japanese 斎藤 (Saitō). Recorded by Wiktionary.
In which country does Saito have the most bearers?
In Brazil, the national register counted about 6.9 thousand people named Saito, more than in any other country we hold, where it is most often spelled saito.
Where is Saito most common?
Saito is densest in Brazil, where the national register counts about 1 in 31 thousand people carrying it.
How common is the name Saito?
In Brazil, the national register counted 6,940 people named Saito, about 1 in 31 thousand residents.

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Query this name via API
curl https://api.mondonomo.ai/api/v1/name-graph/saito

The 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, “Saito”. Data snapshot 2026-10-10.

See how Saito parses inside a full name →