Rennie

surname · Latin script

Meaning: diminutive of Ren/Reginald/Reynold

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

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

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

rarermore common
  • GDGrenada1 in 832(measured from records)
  • KNSt. Kitts & Nevis1 in 27K
  • USUnited States1 in 82K

carrying the name, as counted by each country's national register. One hue, darker where it is more common; hover a country for its figure.

United States (measured from records)

4,076 people, 2010

Sources
92 (measured from records)

Highest-authority source

1 in 832 (inferred from the name graph)

Grenada

measured from records inferred from the name graph

Spellings & scripts(measured from records)

One other spelling is counted as the same name:

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)

diminutive of Ren/Reginald/Reynold

Sources 1

  • Baby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular…

Attested in 1 language in the etymology graph.

Where in the world(measured from records)

Rennie 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 Rennie is recorded, by country
CountryMost common spellingSources
US United States4,0761 in 82K4.1KRennie27
GD Grenada1361 in 832136——
ES Spain491 in 1M49—1
CH Switzerland211 in 400K21—1
PL Poland171 in 2.3M9——
CR Costa Rica111 in 463K11——
KN St. Kitts & Nevis21 in 27K2——

4,076 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; Grenada — Consolidated List of Electors December 2025; INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); BFS — Familiennamen der Wohnbevölkerung (surnames); TSE — electoral roll (padrón) names; dane.gov.pl — PESEL living persons (surnames); St Kitts & Nevis — Register of Electors 2026. 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)

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

  • German surname3 spellings in the group

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

    Also written Rennié

69 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)

Rennie is also recorded in one other lexicon, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

  • In Irish, Usually a Scottish name but sometimes an Ulster variant of Rainey

    as a nameThe Surnames of Ireland

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)

1700180019002000John Rennie, b. 1761James Rennie, b. 1787George Rennie, b. 1802James Rennie, b. 1890Tom Rennie, b. 1900Michael Rennie, b. 1909John Rennie, b. 1959Callum Keith Rennie, b. 1960Willie Rennie, b. 1967David Rennie, b. 2000

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 Rennie,
InformalHello,

Evidence(measured from records)

Attested in 48 sources across 29 countries.

Reference works 4

  • The Oxford Dictionary of Family Names in Britain and Ireland
  • Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
  • Wikipedia surname tokens
  • 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 Rennie mean, and where does it come from?
diminutive of Ren/Reginald/Reynold Recorded by Baby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular….
How do you pronounce Rennie?
A machine transcription gives /ˈɹɛni/ (IPA) for English.
In which country does Rennie have the most bearers?
In the United States, the national register counted about 4.1 thousand people named Rennie, more than in any other country we hold, where it is most often spelled rennie.
Where is Rennie most common?
Measured as a share of residents rather than as a count, Rennie is densest in Grenada — about 1 in 832 people — even though United States holds more of our records for it.
How common is the name Rennie?
In the United States, the national register counted 4,076 people named Rennie in 2010, about 1 in 82 thousand residents.

What do you want to know about Rennie?

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

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, “Rennie”. Data snapshot 2026-10-10.

See how Rennie parses inside a full name →