Tutui

surname · Latin script

Meaning: to thou (to address (someone) using the informal second-person pronoun tu rather than the formal dumneavoastră)

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

/tuːtuiː/(machine-generated) pronunciation, model-generated

Tutui is a surname written in the Latin script, with more bearers in Brazil than in any other country.

rarermore common
  • ESSpain1 in 1.3M(measured from records)
  • BRBrazil1 in 2.2M
  • RORomania≈1 in 2.3M

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.

Brazil (measured from records)

97 people

Sources
35 (measured from records)

Highest-authority source

1 in 1.3M (inferred from the name graph)

Spain

measured from records inferred from the name graph

Meaning & origin(measured from records)

to thou (to address (someone) using the informal second-person pronoun tu rather than the formal dumneavoastră)

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Tutui 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 Tutui is recorded, by country
CountryMost common spellingSources
BR Brazil971 in 2.2M97Tutui35
ES Spain401 in 1.3M40Tutui3
RO Romania≈9 est.≈1 in 2.3M—Tutui3
PT Portugal———Tutui4
US United States——listed—2

97 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: IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); the us-wru-surnames-voterfile register. 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)

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

  • German surname4 spellings in the group

    Most recorded in Spain, United States, Germany, United Kingdom

    Languages: German, English

    Also written Țuțui

  • Romanian surname2 spellings in the group

    Most recorded in Romania, United Kingdom

    Also written Țuțui

  • a separate name3 spellings in the group

    Also written Ţuţui, Țuțui

32 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.

Other recorded senses(measured from records)

Tutui is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Romanian, TUTUÍ, tutuiesc, vb. IV. Tranz. și refl. recipr. A(-și) spune „tu” când stă (ori stau) de vorbă (ca semn al relațiilor familiare); a fi în relații familiare cu cineva.

    as a wordDEX online (dexonline.ro) - DEX '96 / DEX '98 definitions with etymology

  • In Finnish, third-person singular past indicative of tutua

    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.

How to address them(machine-generated)

FormalTutui様Dear Tutui-san, (English)
Informalこんにちは、TutuiさんHi Tutui, (English)

Evidence(measured from records)

Attested in 6 sources across 3 countries.

Reference works 2

  • 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 Tutui mean, and where does it come from?
to thou (to address (someone) using the informal second-person pronoun tu rather than the formal dumneavoastră) Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
How do you pronounce Tutui?
A machine transcription gives /tuːtuiː/ (IPA) for Japanese.
In which country does Tutui have the most bearers?
In Brazil, the national register counted about 97 people named Tutui, more than in any other country we hold, where it is most often spelled tutui.
Where is Tutui most common?
Measured as a share of residents rather than as a count, Tutui is densest in Spain — about 1 in 1.3 million people — even though Brazil holds more of our records for it.
How common is the name Tutui?
In Brazil, the national register counted 97 people named Tutui, about 1 in 2.2 million residents.

What do you want to know about Tutui?

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Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/tutui

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

See how Tutui parses inside a full name →