Luby
surname · Latin script
Meaning: reduced Anglicized form of Gaelic 6 Lubaigh, from lubach ‘cunning’
Recorded for both men and women· direction only, no split published
/ˈɫubi/(machine-generated) pronunciation, model-generated
Luby is a surname written in the Latin script, with more bearers in the United States than in any other country.
- USUnited States1 in 171K(measured from records)
- PLPoland1 in 832K
- NLNetherlands1 in 1.2M
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)
- Sources
- 93 (measured from records)
- 1 in 171K (inferred from the name graph)
1,941 people, 2010
Highest-authority source
United States
measured from records inferred from the name graph
Meaning & origin(measured from records)
reduced Anglicized form of Gaelic 6 Lubaigh, from lubach ‘cunning’.
Sources 1
- Dictionary of American Family Names
Attested across 2 languages in the etymology graph.
Where in the world(measured from records)
Luby 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 | |||
|---|---|---|---|---|---|
| US United States | 1,941 | 1 in 171K | 1.9K | Luby | 39 |
| PL Poland | 46 | 1 in 832K | 31 | — | — |
| BR Brazil | 39 | 1 in 5.4M | 39 | — | — |
| NL Netherlands | 15 | 1 in 1.2M | 15 | — | 1 |
| BE Belgium | 1 | 1 in 12M | 1 | — | — |
1,941 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; IBGE — Censo 2022 Nomes no Brasil per-token lookup (v3 API, given+surname); dane.gov.pl — PESEL living persons (surnames); CBG Familienamenbank — Dutch surname bearer counts (GBA/BRP 2007); Familienaam.be — Belgian family-name frequency (population 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)
Luby is also recorded in 3 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
nickname from the adjective luby ‘pleasant’, ‘beloved’.
as a nameDictionary of American Family Names
In Polish, dear, beloved
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In dsb, dear
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)
- Thomas Lubyb. 1800Irish mathematician
- Thomas Clarke Lubyb. 1822IEIrish revolutionary, author and journalist
- Edna Lubyb. 1884USAmerican actress (1884-1928)
- Hal Lubyb. 1913USAmerican baseball player (1913–1986)
- Michael Lubyb. 1950USAmerican information theorist and cryptographer
- Kurt Lubyb. 1963British racing driver
- Felicity Lubyb. 2004DEGerman ice hockey player
- Thomas LubyPeerage person ID=62653
- Diane Luby LaneAmerican writer and nonprofit executive
- Stephen LubyUSresearcher
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)
Attested in 22 sources across 10 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 128 | #33,858 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 115 | #33,858 |
| US United States | SSA — National Baby Names (1880–present) | 1925 | 14 | — |
| US United States | SSA — National Baby Names (1880–present) | 1924 | 13 | — |
| US United States | SSA — National Baby Names (1880–present) | 1929 | 11 | — |
| US United States | SSA — National Baby Names (1880–present) | 1926 | 11 | — |
| US United States | SSA — National Baby Names (1880–present) | 1921 | 11 | — |
| US United States | SSA — National Baby Names (1880–present) | 1919 | 10 | — |
| US United States | SSA — National Baby Names (1880–present) | 1916 | 10 | — |
| US United States | SSA — National Baby Names (1880–present) | 1949 | 9 | — |
| US United States | SSA — National Baby Names (1880–present) | 1942 | 9 | — |
| US United States | SSA — National Baby Names (1880–present) | 1938 | 9 | — |
Reference works 6
- Dictionary of American Family Names
- The Oxford Dictionary of Family Names in Britain and Ireland
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikidata name items (native-script + romanized given/family names)
- Rymut, Słownik nazwisk współcześnie w Polsce używanych (10 vols, IJP PAN, Kraków 1992–1994) — every Polish surname in the PESEL register at the end of 1990, with bearer counts nationally and per voivodeship1990
- Hoffman, Polish Surnames: Origins and Meanings (2nd ed., 2012)
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 Luby mean, and where does it come from?
- reduced Anglicized form of Gaelic 6 Lubaigh, from lubach ‘cunning’. Recorded by Dictionary of American Family Names.
- How do you pronounce Luby?
- A machine transcription gives /ˈɫubi/ (IPA) for English.
- In which country does Luby have the most bearers?
- In the United States, the national register counted about 1.9 thousand people named Luby, more than in any other country we hold, where it is most often spelled luby.
- Where is Luby most common?
- Luby is densest in the United States, where the national register counts about 1 in 171 thousand people carrying it.
- How common is the name Luby?
- In the United States, the national register counted 1,941 people named Luby in 2010, about 1 in 171 thousand residents.
What do you want to know about Luby?
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/lubyThe 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, “Luby”. Data snapshot 2026-10-10.