Karloff

surname · Latin script

Meaning: Boris, US actor

(measured from records)Officially recorded in 2 countries · latest register: Census Bureau, 2020

Pronunciation:Explore pronunciation →

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

  • USUnited States1 in 3.1M(measured from records)

carrying the name, as counted by each country's national register. 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)

107 people, 2010

2 (measured from records)

recorded for this name

Record sources
5 (measured from records)

corpus datasets behind its best-documented spelling

strongest: reference-verified

1 in 3.1M (inferred from the name graph)

United States

measured from records inferred from the name graph

Spellings & scripts

(measured from records)
KarloffLatin(measured from records)
КарлоффCyrillic(measured from records)

Locally spelled Карлофф in RU Russia.

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)

Boris, US actor

Cited for this meaning 1

  • Pronouncing Dictionary of Proper Names

Where the surname Karloff is found

(measured from records)

Karloff 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 Karloff is recorded, by country
CountryMost common spellingSources
US United States1071 in 3.1M124—5
RU Russia———Карлофф2
EE Estonia——listed——

107 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 2000. 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)

Karloff is also recorded as another name, grouped separately because the records behind them do not connect to the one described above.

  • a separate name2 spellings in the group

    Also written Karlöff

22 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.

Notable people with this name

(measured from records)
19301940195019601970Sara Karloff, b. 1938Christopher Karloff, b. 1950Howard Jeffrey Karloff, b. 1961

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).

How to address them

(machine-generated)
FormalDear Karloff,
InformalHello,

Evidence

(measured from records)

6 registers and reference works attest this spelling, across 2 countries.

Register rows as of the 2026-10-09 data build.

Frequently asked questions

What does the name Karloff mean, and where does it come from?
Boris, US actor Recorded by Pronouncing Dictionary of Proper Names.
In which country does Karloff have the most bearers?
In the United States, the national register counted about 107 people named Karloff, more than in any other country we hold.
Where is Karloff most common?
Karloff is densest in the United States, where the national register counts about 1 in 3.1 million people carrying it.
How common is the name Karloff?
In the United States, the national register counted 107 people named Karloff in 2010, about 1 in 3.1 million residents.

What do you want to know about Karloff?

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

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, “Karloff”. Data snapshot 2026-10-13.

See how Karloff parses inside a full name →