McCollough

surname · Latin script

(measured from records)Officially recorded in 1 country · latest register: Census Bureau, 2020

Pronunciation:Explore pronunciation →

McCollough is a surname written in the Latin script, with more bearers in Pakistan than in any other country. Recorded meaning: Variant of McCullough.

  • SGSingapore≈1 in 70Kfew records(inferred from the name graph)
  • USUnited States1 in 78K
  • GBUnited Kingdom≈1 in 93K

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.

Pakistan (inferred from the name graph)

≈4,600 people, est.

Record sources
317 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

≈1 in 54K (inferred from the name graph)

Pakistan, est.

measured from records inferred from the name graph

Meaning & origin

(measured from records)

Variant of McCullough.

Cited for this meaning 3

  • Dictionary of American Family Names
  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Wiktionary

Attested in 1 language in the etymology graph.

Where the surname McCollough is found

(measured from records)

McCollough 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 McCollough is recorded, by country
CountryMost common spellingSources
PK Pakistan≈4,600 est.≈1 in 54K—McCollough1
US United States4,2691 in 78K4.3KMcCollough317
GB United Kingdom≈740 est.≈1 in 93K—McCollough42
NG Nigeria≈720 est.≈1 in 325K—McCollough2
CA Canada≈410 est.≈1 in 100K—McCollough27
SG Singapore≈86 est.≈1 in 70K—McCollough3

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. 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).

Notable people with this name

(measured from records)
1850190019502000Denis McCullough, b. 1883Aaron McCollough, b. 1971Evan McCollough, b. 1987

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 Mccollough,
InformalHello,

Evidence

(measured from records)

8 registers and reference works attest this spelling, across 1 country.

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

Frequently asked questions

What does the name McCollough mean, and where does it come from?
Variant of McCullough. Recorded by Dictionary of American Family Names and The Oxford Dictionary of Family Names in Britain and Ireland and 1 other source.
Which countries have the most people with the surname McCollough?
Mondonomo estimates about 4.6 thousand people named McCollough in Pakistan, more than in any other country we hold, where it is most often spelled McCollough. After it come United States, United Kingdom, Nigeria and Canada; the country table on this page ranks them.
How common is the name McCollough?
In the United States, the national register counted 4,269 people named McCollough in 2010, about 1 in 78 thousand residents.

What do you want to know about McCollough?

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

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

See how McCollough parses inside a full name →