Cu

loc · Latin script

Meaning: Name of the letter q

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

Cu is a name written in the Latin script, with more bearers in Vietnam than in any other country.

rarermore common
  • VNVietnam≈1 in 3.2K(inferred from the name graph)
  • GTGuatemala≈1 in 4.1K
  • NONorway1 in 161K

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.

Vietnam (inferred from the name graph)

≈31,000 people, est.

Sources
105 (measured from records)

Highest-authority source

≈1 in 3.2K (inferred from the name graph)

Vietnam, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

Locally spelled Cú in US United States, GT Guatemala.

Meaning & origin(measured from records)

Name of the letter q

Sources 1

  • kaikki.org Wiktionary extract (IPA + transliterations)

Attested across 10 languages in the etymology graph.

Where in the world(measured from records)

Cu 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 Cu is recorded, by country
CountryMost common spellingSources
VN Vietnam≈31,000 est.≈1 in 3.2KlistedCu105
GT Guatemala≈4,200 est.≈1 in 4.1K—Cú25
IN India≈2,200 est.≈1 in 608K1—7
US United States7681 in 433K834Cú85
ES Spain≈160 est.≈1 in 307K—Cu22
NO Norway341 in 161K34—2
FI Finland251 in 223K25—2
IS Iceland≈2 est.≈1 in 194Klisted——

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; Census Bureau — Surname Frequency 2020; SSB — Navnesøk (name-search service, living population); DVV — Nimipalvelu (Finnish name service, per-name lookup); naampy — India given names from state electoral rolls (in-rolls). 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)

Cu is also recorded as 4 other names, grouped separately because the records behind them do not connect to the one described above.

  • English surname43 spellings in the group

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

    Languages: English, German

    Also written Cü, Cú, Cù, Çu, Cừ

  • a separate name35 spellings in the group

    Most recorded in India, Japan, El Salvador, Vietnam

    Also written Cư, Củ, Çu, Çủ, Cụ

  • a separate name14 spellings in the group

    Also written Cụ, Cự, Cù, Čü, Cú

  • French name15 spellings in the group

    Most recorded in France

    Also written Cú, Ĉü, Cự, Cứ, Cü

55 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)

Cu is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In cdo, pleasant, to enrich, to nourish, to moisten, many, much, black

    as a wordDictionary of the Foochow Dialect

  • In cdo, a minister, a courtier, a statesman, a servant, to serve, R

    as a wordDictionary of the Foochow Dialect

  • In cau-nkh-pro, 1 oat flour 2 flour made from roasted corn

    as a wordStarLing Tower of Babel etymological databases (Starostin et al.)

  • In sit-pro, burn, bake

    as a wordStarLing Tower of Babel etymological databases (Starostin et al.)

  • In sit-pro, fish

    as a wordStarLing Tower of Babel etymological databases (Starostin et al.)

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)

0500100015002000Zu Mao, b. 200Zu Chongzhi, b. 429Zu Gengzhi, b. 480Zu Yong, b. 699Zu Dashou, b. 1550Zu Shuyao, b. 1614Zu Feng, b. 1974Zu Lijun, b. 1989
  • Zu Maob. 200not in their usual nameChinese general during the Han dynasty
  • Zu Chongzhib. 429not in their usual nameChinese mathematician-astronomer
  • Zu Gengzhib. 480not in their usual nameChinese mathematician
  • Zu Yongb. 699CNnot in their usual nameChinese poet
  • Zu Dashoub. 1550CNnot in their usual nameChinese General
  • Zu Shuyaob. 1614not in their usual nameQing dynasty person CBDB = 357001
  • Zu Fengb. 1974CNnot in their usual nameChinese actor
  • Zu Lijunb. 1989CNnot in their usual nameChinese swimmer
  • Zu Tingnot in their usual nameChinese Ofiicial
  • Cheng Junot in their usual nameSong dynasty person CBDB = 36506

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 21 sources across 12 countries.

Official registers attesting Cu
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 20202020834#30,066
US United StatesCensus Bureau — Surname Frequency 20102010768#30,420
US United StatesCensus Bureau — Surname Frequency 20002000564#37,200
NO NorwaySSB — Navnesøk (name-search service, living population)—34#32,575
FI FinlandDVV — Nimipalvelu (Finnish name service, per-name lookup)—25#40,118
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

Reference works 2

  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • 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 Cu mean, and where does it come from?
Name of the letter q Recorded by kaikki.org Wiktionary extract (IPA + transliterations).
In which country does Cu have the most bearers?
Mondonomo estimates about 31 thousand people named Cu in Vietnam, more than in any other country we hold, where it is most often spelled cu.
How common is the name Cu?
In the United States, the national register counted 768 people named Cu in 2010, about 1 in 433 thousand residents.

What do you want to know about Cu?

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

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, “Cu”. Data snapshot 2026-10-10.

See how Cu parses inside a full name →