Kilby
surname · Latin script
Meaning: Person from Kilby, Leicestershire; farmstead of the young men
(measured from records)Officially recorded in 8 countries · latest register: dane.gov.pl, 2026
/ˈkɪɫbi/(machine-generated) pronunciation, model-generated
Kilby is a surname written in the Latin script, most frequently recorded in the United States.
- GBUnited Kingdom
- AUAustralia
- USUnited States
Where the name is found, darker where our sources hold more of it. No national register counts its bearers anywhere we hold data, so the map carries no figures. One hue, darker where it is more common; hover a country for its figure.
Meaning & origin
(measured from records)Person from Kilby, Leicestershire; farmstead of the young men.
Cited for this meaning 1
- Encyclopedia of surnames [the complete companion to tracing your names history]
Attested in 1 language in the etymology graph.
Where in the world
(measured from records)Recorded in:
No national register we accept counts this name’s bearers, so the page lists where it is found and publishes no figure.
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)Kilby 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.
In English, from Kilby, Leicestershire; first attested William de Kilebi 1202 AssNth.
as a nameA Dictionary of English Surnames
In English, recorded in Domesday Book as Cilebi. It was probably originally named with the OE elements did Child + tun enclosure, settlement (cf. Chilton), the second element being later replaced by the equiv. ON byr. Vars. : Kilbey, Killby, Kilbuy.
as a nameA dictionary of surnames
In English, corded in Domesday Book as Cilebi. It was probably ori¬ ginally named with the OE elements did Child -f tiin enclosure, settlement (cf. Chilton), the second element being later replaced by the equiv. ON byr.
as a nameThe Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles
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)- Christopher Kilbyb. 1705American merchant
- Thomas Kilbyb. 1865USAmerican politician (1865–1943)
- Arthur Forbes Gordon Kilbyb. 1885GBEnglish military officer (1885–1915); recipient of the Victoria Cross
- Clyde S. Kilbyb. 1902USAmerican academic (1902-1986)
- Jack Kilbyb. 1923USAmerican electrical engineer (1923–2005)
- Michael Kilbyb. 1924GBBritish politician (1924-2008)
- Brian Kilbyb. 1938GBBritish athlete (1938–2024)
- James Kilbyb. 1963U.S. Navy admiral
- Brad Kilbyb. 1983USAmerican baseball player
- Barry KilbyGBEnglish footballer
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)17 registers and reference works attest this spelling, across 8 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 4.4K | #7,534 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 4.4K | #7,068 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 4.1K | #7,694 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 10 | #120,154 |
| PL Poland | dane.gov.pl — PESEL living persons (surnames) | 2026 | 4 | — |
| PL Poland | dane.gov.pl — PESEL living persons (names) | — | 4 | #225,269 |
| CR Costa Rica | TSE — electoral roll (padrón) names | — | 4 | #10,079 |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 3 | #154,370 |
| GB United Kingdom | A Dictionary of Surnames (Hanks & Hodges, 1988) | — | — | — |
| US United States | wru Name Dictionary — US surnames, Census 2010 subset (Khanna et al.) | — | — | — |
Reference works 3
- Dictionary of American Family Names
- The Oxford Dictionary of Family Names in Britain and Ireland
- 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 Kilby mean, and where does it come from?
- Person from Kilby, Leicestershire; farmstead of the young men. Recorded by Encyclopedia of surnames [the complete companion to tracing your names history].
- How do you pronounce Kilby?
- A machine transcription gives /ˈkɪɫbi/ (IPA) for English.
- In which country does Kilby have the most bearers?
- Kilby is most frequently recorded in the United States.
What do you want to know about Kilby?
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/kilbyThe 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, “Kilby”. Data snapshot 2026-10-13.