Bailly
surname · Latin script
Meaning: soit de (Le) Bailly, nom de plusieurs localités du nord de la France, soit variante de bailli (Dictionnaire des noms de famille du Canada français. Anthroponymie et généalogie. 2e édition)
(measured from records)Officially recorded in 18 countries · latest register: Ministere de l'Interieur, 2025
Bailly is a surname written in the Latin script, with more bearers in France than in any other country.
- FRFrance≈1 in 3.2K(inferred from the name graph)
- BEBelgium1 in 7.9K
- GAGabon≈1 in 35K
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.
- France (inferred from the name graph)
- Record sources
- 295 (measured from records)
- ≈1 in 3.2K (inferred from the name graph)
≈22,000 people, est.
corpus datasets behind its best-documented spelling
strongest: highest-authority source
France, est.
measured from records inferred from the name graph
Meaning & origin
(measured from records)soit de (Le) Bailly, nom de plusieurs localités du nord de la France, soit variante de bailli
Cited for this meaning 1
- Dictionnaire des noms de famille du Canada français. Anthroponymie et généalogie. 2e édition
Where the surname Bailly is found
(measured from records)Bailly 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.
| Country | Most common spelling | Sources | ||||
|---|---|---|---|---|---|---|
| FR France | #145 | ≈22,000 est. | ≈1 in 3.2K | 2.3K | Bailly | 295 |
| CI Côte d’Ivoire | — | ≈7,700 est. | ≈1 in 4.2K | 726 | Bailly | 5 |
| BE Belgium | #305 | 1,475 | 1 in 7.9K | 1.5K | Bailly | 72 |
| US United States | — | 664 | 1 in 501K | 827 | Bailly | 127 |
| HT Haiti | — | ≈290 est. | ≈1 in 40K | listed | — | 2 |
| CH Switzerland | — | 230 | 1 in 37K | 230 | Bailly | 38 |
| GA Gabon | — | ≈72 est. | ≈1 in 35K | 1 | — | 1 |
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: INSEE — Fichier des noms de famille (1891–2000); Familienaam.be — Belgian family-name frequency (population register); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; nomprenoms.ci — ranked Ivorian surname frequencies; BFS — Familiennamen der Wohnbevölkerung (surnames); Ministere de l'Interieur — 2025 candidate lists (local + legislative); the ht-potomitan-names register. 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 recorded senses
(measured from records)Bailly is also recorded in 2 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
A botanical plant name author abbreviation for botanist Émile Bailly (1829-1894).
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In frm, a nobleman
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
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)- Jean Sylvain Baillyb. 1736FRFrench astronomer, mathematician, freemason, and political leader (1736-1793)
- Logan Baillyb. 1985BEBelgian association football player
- Eric Baillyb. 1994CIIvorian association football player
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)Evidence
(measured from records)30 registers and reference works attest this spelling, across 18 countries.
Register rows as of the 2026-10-09 data build.
Frequently asked questions
- What does the name Bailly mean?
- Recorded meaning: soit de (Le) Bailly, nom de plusieurs localités du nord de la France, soit variante de bailli
- Which countries have the most people with the surname Bailly?
- Mondonomo estimates about 22 thousand people named Bailly in France, more than in any other country we hold, where it is most often spelled bailly. After it come Côte d’Ivoire, Belgium, United States and Haiti; the country table on this page ranks them.
- How common is the name Bailly?
- In Belgium, the national register counted 1,475 people named Bailly in 2008, about 1 in 7.9 thousand residents.
- How common is Bailly compared with other names?
- In France, Bailly is the 145th most common surname of 1,200,812 surnames recorded there.
What do you want to know about Bailly?
Nobody replies to these one by one, but what readers ask decides what these pages answer next.
Query this name via API
curl -H "X-API-Key: YOUR_KEY" https://api.mondonomo.ai/api/v1/name-graph/baillyThe 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, “Bailly” — the 145th most common surname in France. Data snapshot 2026-10-13.