Leonardy

surname · Latin script

(measured from records)Officially recorded in 9 countries · latest register: IBGE, 2022

/ləonardj/(machine-generated) Indonesian · model-generated

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Leonardy is a surname written in the Latin script, with more bearers in Belgium than in any other country.

  • BEBelgium1 in 273K(measured from records)
  • CHSwitzerland1 in 1.7M
  • FRFrance≈1 in 19Mfew records

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.

Belgium (measured from records)

43 people, 2008

Record sources
41 (measured from records)

corpus datasets behind its best-documented spelling

strongest: highest-authority source

1 in 273K (inferred from the name graph)

Belgium

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

No verified etymology recorded for this name yet — the entries below are drawn from usage statistics and the name graph.

Where the surname Leonardy is found

(measured from records)

Leonardy 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 Leonardy is recorded, by country
CountryMost common spellingSources
BE Belgium431 in 273K43Leonardy10
CH Switzerland51 in 1.7M5——
FR France≈4 est.≈1 in 19MlistedLeonardy41
BR Brazil——31——
CR Costa Rica——4——

43 people counted by Familienaam.be — Belgian family-name frequency (population register), 2008. 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: Familienaam.be — Belgian family-name frequency (population register); IBGE — names by decade (Kaggle mirror); BFS — Familiennamen der Wohnbevölkerung (surnames); TSE — electoral roll (padrón) names. 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)
185019001950Nicolas Leonardy, b. 1858Helmut Leonardy, b. 1925Robert Leonardy, b. 1940

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 Mr Leonardy,
InformalHi Leonardy,

Evidence

(measured from records)

13 registers and reference works attest this spelling, across 9 countries.

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

Frequently asked questions

How do you pronounce Leonardy?
It depends on the language: in Indonesian /ləonardj/; in Spanish /leonaɾði/. Transcriptions are machine-generated except where a dictionary is named.
Which countries have the most people with the surname Leonardy?
In Belgium, the national register counted about 43 people named Leonardy, more than in any other country we hold, where it is most often spelled leonardy. After it come Switzerland and France; the country table on this page ranks them.
Where is Leonardy most common?
Leonardy is densest in Belgium, where the national register counts about 1 in 273 thousand people carrying it.
How common is the name Leonardy?
In Belgium, the national register counted 43 people named Leonardy in 2008, about 1 in 273 thousand residents.

What do you want to know about Leonardy?

Nobody replies to these one by one, but what readers ask decides what these pages answer next.

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/leonardy

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

See how Leonardy parses inside a full name →