StLouis

surname · Latin script

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

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

StLouis is a surname written in the Latin script, with more bearers in the United States than in any other country.

rarermore common
  • CACanada≈1 in 25K(inferred from the name graph)
  • USUnited States1 in 64K
  • GBUnited Kingdom≈1 in 117K

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.

United States (measured from records)

5,158 people, 2010

Sources
172 (measured from records)

Highest-authority source

≈1 in 14K (inferred from the name graph)

Haiti, est.

measured from records inferred from the name graph

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

Locally spelled St-Louis in CA Canada.

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.

Where in the world(measured from records)

StLouis 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 StLouis is recorded, by country
CountryMost common spellingSources
US United States—5,1581 in 64K5.3KStLouis172
PK Pakistan—≈1,600 est.≈1 in 150K—StLouis1
CA Canada—≈1,500 est.≈1 in 25K—St-Louis128
HT Haiti—≈820 est.≈1 in 14K—StLouis3
GB United Kingdom—≈560 est.≈1 in 117K—StLouis23
JO Jordan—≈200 est.≈1 in 53K—StLouis2
JM Jamaica—≈130 est.≈1 in 21K—StLouis1
GY Guyana#824———StLouis2

5,158 people counted by Census Bureau — Surname Frequency 2010, 2010, counting the spelling stlouis. 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. 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)

StLouis is also recorded as 6 other names, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written St-Louis

  • Swahili surname2 spellings in the group

    Most recorded in United States, Canada

    Also written St-Louis

  • Hindi surname4 spellings in the group

    Most recorded in United States, Canada, United Kingdom

    Languages: Hindi, Urdu

    Also written St-Louis

  • Danish surname7 spellings in the group

    Most recorded in Denmark, United States, Canada

    Languages: Danish, Swedish

    Also written St-Louis

  • Polish surname2 spellings in the group

    Most recorded in Poland, United States, Canada

    Also written St-Louis

  • Chinese surname2 spellings in the group

    Most recorded in United States, China, Canada

    Also written St-Louis

33 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.

How to address them(machine-generated)

FormalDear Stlouis,
InformalHello,

Evidence(measured from records)

Attested in 5 sources across 1 country.

Official registers attesting StLouis
CountryRegisterYearCountRank
US United StatesCensus Bureau — Surname Frequency 202020205.3K#6,198
US United StatesCensus Bureau — Surname Frequency 201020105.2K#6,569
US United StatesCensus Bureau — Surname Frequency 200020004.4K#7,056
US United Stateswru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.)———

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

How do you pronounce StLouis?
A machine transcription gives /sʈɫuiz/ (IPA) for English.
In which country does StLouis have the most bearers?
In the United States, the national register counted about 5.2 thousand people named StLouis, more than in any other country we hold, where it is most often spelled StLouis.
How common is the name StLouis?
In the United States, the national register counted 5,158 people named StLouis in 2010, about 1 in 64 thousand residents.
How common is StLouis compared with other names?
In Guyana, StLouis is the 824th most common surname of 15,834 surnames recorded there.

What do you want to know about StLouis?

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

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, “StLouis” — the 824th most common surname in Guyana. Data snapshot 2026-10-10.

See how StLouis parses inside a full name →