Tonu

given name · Latin script

Recorded as a male name· opposite-gender records fall within measured source noise

Tonu is a given name written in the Latin script, with more bearers in Estonia than in any other country, where it is the 50th most common given name.

rarermore common
  • EEEstonia≈1 in 817(inferred from the name graph)
  • RORomania≈1 in 109K
  • FIFinland≈1 in 253K

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.

Estonia (inferred from the name graph)

≈1,500 people, est.

Sources
66 (measured from records)

Highest-authority source

≈1 in 817 (inferred from the name graph)

Estonia, est.

measured from records inferred from the name graph

Name dossier (print, CSV)

Spellings & scripts(measured from records)

2 other spellings are counted as the same name:

Locally spelled Tõnu in EE Estonia, FI Finland and Tönu in SE Sweden.

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 in 1 language in the etymology graph.

Where in the world(measured from records)

Tonu 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 Tonu is recorded, by country
CountryMost common spellingSources
EE Estonia#50≈1,500 est.≈1 in 8172.7KTõnu41
RO Romania—≈200 est.≈1 in 109K—Tonu14
US United States—≈80 est.≈1 in 4.2M—Tonu66
NG Nigeria—≈51 est.≈1 in 4.2M—Tonu10
SE Sweden—341 in 300K34Tönu3
FI Finland—≈22 est.≈1 in 253K42Tõnu6
LV Latvia—31 in 627K3Tonu4

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: Statistics Estonia — Ees- ja perekonnanimed (Population Register); DVV — Nimipalvelu (Finnish name service, per-name lookup); Skatteverket — Sök hur många som har ett visst namn (living population); PMLP — Personu vārdi (given names in population 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)

Tonu is also recorded as 8 other names, grouped separately because the records behind them do not connect to the one described above.

  • Hindi given name27 spellings in the group

    Most recorded in India, Bangladesh, Tanzania, United States

    Languages: Hindi, Bangla, Arabic

    Also written Tunu, Tanu, তনু, Toon, Tanoo

  • Spanish given name7 spellings in the group

    Most recorded in Estonia, United States, Spain, India

    Languages: Spanish, Portuguese

    Also written Tõnu, Toñu, Tönu

  • Indonesian given name4 spellings in the group

    Most recorded in India, Indonesia, United States

    Also written Tõnu, Toñu

  • a separate name4 spellings in the group

    Also written To︢nu, Tõnu, Tönu

  • Romanian given name4 spellings in the group

    Most recorded in Romania, Moldova

    Also written Tõnu, Țonu, Tőnu

  • French given name4 spellings in the group

    Most recorded in France

    Also written Tõnu, Țonu, Tonù

  • Swahili given name2 spellings in the group

    Most recorded in Estonia, India

    Also written Tõnu

  • Russian surname7 spellings in the group

    Most recorded in Russia, Ukraine, Estonia, Türkiye

    Languages: Russian, Ukrainian

    Also written Тону, Тыну, Tõnu

38 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)

Tonu 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 Samoan, be exact, correct; be right, just; be agreed, resolved, decided; rightly, correctly

    as a wordAustronesian Comparative Dictionary (ACD), CLDF v2.0

  • In Tongan, to be exact, correct, right, as it ought to be, or exactly suited to the occasion

    as a wordAustronesian Comparative Dictionary (ACD), CLDF v2.0

  • In mnv, to be correct, satisfactory, right, excellent; to be fulfilled

    as a wordAustronesian Comparative Dictionary (ACD), CLDF v2.0

  • In aud, right, correct; true, truthful

    as a wordAustronesian Comparative Dictionary (ACD), CLDF v2.0

  • In Polish, genitive singular of ton

    as a wordkaikki.org Wiktionary extract (IPA + transliterations)

  • In niu, proper, right

    as a wordAustronesian Comparative Dictionary (ACD), CLDF v2.0

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.

Evidence(measured from records)

Attested in 16 sources across 11 countries.

Official registers attesting Tonu
CountryRegisterYearCountRank
SE SwedenSkatteverket — Sök hur många som har ett visst namn (living population)—1#87,928

Reference works 1

  • 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

Is Tonu a male or female name?
Tonu is a male 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 Tonu have the most bearers?
Mondonomo estimates about 1.5 thousand people named Tonu in Estonia, more than in any other country we hold, where it is most often spelled tõnu.
How common is the name Tonu?
In Sweden, the national register counted 34 people named Tonu, about 1 in 300 thousand residents.
How common is Tonu compared with other names?
In Estonia, Tonu is the 50th most common given name of 9,600 given names recorded there.

What do you want to know about Tonu?

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

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, “Tonu” — the 50th most common given name in Estonia. Data snapshot 2026-10-10.

See how Tonu parses inside a full name →