Lôo

surname · Latin script

Lôo is a surname written in the Latin script, with more bearers in the United States than in any other country. Recorded meaning: From English Loo, from Hokkien 呂/吕 (Lū). Doublet of Lu, Lou, Luy, and Lew.

  • GYGuyana1 in 15K(measured from records)
  • FIFinland1 in 37K
  • NLNetherlands1 in 49K

carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). Countries with no figure are shown too: flat where a national register lists the name without counting it, hatched where only our records hold it. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

3,645 people, 2010

Record sources
156 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 15K (inferred from the name graph)

Guyana

measured from records inferred from the name graph

Spellings & scripts

(measured from records)

One other spelling is counted as the same name:

Locally spelled Loo in US United States, NL Netherlands.

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

(measured from records)
Derivation of Lôo: each step is the form the one above it came from.
Lôo
  1. EnglishLoo(measured from records)
  2. Hokkien呂/吕Lū(measured from records)

From English Loo, from Hokkien 呂/吕 (Lū). Doublet of Lu, Lou, Luy, and Lew.

Cited for this meaning 4

  • A dictionary of surnames
  • Dictionary of American Family Names
  • The Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles
  • Wiktionary

Attested across 21 languages in the etymology graph.

Where in the world

(measured from records)

Lôo 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 Lôo is recorded, by country
CountryMost common spellingSources
US United States3,6451 in 91K3.8KLoo38
NL Netherlands3551 in 49K355Loo18
SE Sweden2061 in 50K206—1
FI Finland1491 in 37K149——
ES Spain931 in 538K93—3
GY Guyana511 in 15K51——

3,645 people counted by Census Bureau — Surname Frequency 2010, 2010. 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; CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Skatteverket — Sök hur många som har ett visst namn (living population); DVV — Nimipalvelu (Finnish name service, per-name lookup); INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Guyana — Official List of Electors July 2025. 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)

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

  • English surname34 spellings in the group

    Most recorded in United States, Malaysia, Netherlands, Singapore

    Languages: English, Dutch, German

    Also written Loo, Loeo, Lo'O, Lõo, Löö

  • a separate name3 spellings in the group

    Also written Lõo, Loo

  • Spanish surname13 spellings in the group

    Most recorded in Peru, Mexico, United States, Chile

    Also written Loo, Loó, Lóó, Loö, Lòó

3 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.

Evidence

(measured from records)

No register attests this spelling yet

None of the official registers or reference works in our corpus lists Lôo under this spelling. The statistics on this page rest on person records, and the related names are inferred from the name graph.

Frequently asked questions

What does the name Lôo mean, and where does it come from?
From English Loo, from Hokkien 呂/吕 (Lū). Doublet of Lu, Lou, Luy, and Lew. Recorded by A dictionary of surnames and Dictionary of American Family Names and 2 other sources.
In which country does Lôo have the most bearers?
In the United States, the national register counted about 3.6 thousand people named Lôo, more than in any other country we hold, where it is most often spelled loo.
Where is Lôo most common?
Measured as a share of residents rather than as a count, Lôo is densest in Guyana — about 1 in 15 thousand people — even though United States holds more of our records for it.
How common is the name Lôo?
In the United States, the national register counted 3,645 people named Lôo in 2010, about 1 in 91 thousand residents.

What do you want to know about Lôo?

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Please leave out anyone's personal details (see Privacy).

Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/l%C3%B4o

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, “Lôo”. Data snapshot 2026-10-13.

See how Lôo parses inside a full name →