Losa
surname · Latin script
Meaning: a flat stone slab, perhaps a boundary marker of some kind, Sp
Recorded for both men and women· direction only, no split published
/losa/(machine-generated) pronunciation, model-generated
Losa is a surname written in the Latin script, with more bearers in Spain than in any other country.
- ESSpain1 in 15K(measured from records)
- PHPhilippines≈1 in 68K
- FRFrance≈1 in 197K
carrying the name, as counted by its national register where one exists and as Mondonomo estimates it elsewhere (marked ≈ and "est." on hover). One hue, darker where it is more common; hover a country for its figure.
- Spain (measured from records)
- Sources
- 131 (measured from records)
- 1 in 15K (inferred from the name graph)
3,296 people
Highest-authority source
Spain
measured from records inferred from the name graph
Meaning & origin(measured from records)
a flat stone slab, perhaps a boundary marker of some kind, Sp. losa (of pre-Roman origin, probably Celt.; cf. Gael. leac, W llech). Cogn.: Cat.: Llosa. Dims.: O’Lucherin, O’Loghrane, O’Loughran, Lough(e)ran, Loughren, Laugheran, Lochrane, Loughrane, (O’)Loran (Gael. O Luchaireain).
Sources 1
- A dictionary of surnames
Where in the world(measured from records)
Losa 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 | |||
|---|---|---|---|---|---|
| ES Spain | 3,296 | 1 in 15K | 3.3K | Losa | 122 |
| PH Philippines | ≈1,600 est. | ≈1 in 68K | — | Losa | 35 |
| IT Italy | ≈1,000 est. | ≈1 in 60K | listed | Losa | 74 |
| US United States | 382 | 1 in 871K | 391 | Losa | 128 |
| FR France | ≈350 est. | ≈1 in 197K | 37 | Losa | 131 |
| CH Switzerland | 209 | 1 in 40K | 209 | Losa | 14 |
| UY Uruguay | 105 | 1 in 32K | 105 | Losa | 14 |
3,296 people counted by INE — Padrón per-token widgets (current living counts, given + apellidos). 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: INE — Padrón per-token widgets (current living counts, given + apellidos); INE — Apellidos más frecuentes (Padrón Municipal); Census Bureau — Surname Frequency 2010; Census Bureau — Surname Frequency 2020; INSEE — Fichier des noms de famille (1891–2000); the xinhua-italian-manual register; BFS — Familiennamen der Wohnbevölkerung (surnames); INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public). 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)
Losa is also recorded in 5 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
In Spanish, by a flat stone slab, perhaps a boundary marker of some kind, Sp. losa (of pre-Roman origin, probably Celt.; cf. Gael, leac, W llech).
as a nameThe Oxford Names Companion - The definitive guide to Surnames, First Names, and Place Names of the British Isles
In Spanish, flagstone, paving stone, slab, tile (flat, rectangular piece of rock or stone)
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Irish, inflection of lus (“plant, herb”):
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Czech, genitive/accusative singular of los
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In Serbo-Croatian, genitive/accusative singular of lȍs
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)
- Francisco de Losab. 1536ESSpanish writer
- Taurino Mariano Losab. 1893ESSpanish botanist
- Ilse Losab. 1913PTPortuguese writer (1913–2006)
- Manuel Roberto Losa Rochab. 1940ESUruguayan writer
- Carmen Losab. 1959ESSpanish writer
- Alfonso Losab. 1971DEGerman actor
- Stefano Andrea Losab. 1974CHprofessor at University of Applied Sciences and Arts of Southern Switzerland
- Laurentiusb. 1986ITnot in their usual nameWikimedia Foundation Board of Trustees member
- Fabio B. LosaFReconomist, applied researcher and monitoring and evaluation specialist
- Annik DubiedCHnot in their usual nameprofessor
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 30 sources across 17 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| ES Spain | INE — Apellidos más frecuentes (Padrón Municipal) | — | 3.3K | #1,567 |
| ES Spain | INE — Padrón per-token widgets (current living counts, given + apellidos) | — | 3.3K | #1,567 |
| US United States | Census Bureau — Surname Frequency 2020 | 2020 | 391 | #56,436 |
| US United States | Census Bureau — Surname Frequency 2010 | 2010 | 382 | #54,055 |
| US United States | Census Bureau — Surname Frequency 2000 | 2000 | 370 | #52,608 |
| CH Switzerland | BFS — Familiennamen der Wohnbevölkerung (surnames) | 2024 | 209 | #6,036 |
| UY Uruguay | INE Uruguay — Apellidos más frecuentes 1902–2024 (Tableau Public) | — | 105 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1961 | 57 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1941 | 51 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1971 | 41 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1951 | 39 | — |
| FR France | INSEE — Fichier des noms de famille (1891–2000) | 1991 | 37 | — |
Reference works 4
- 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
- Cognomix.it (Nomix s.r.l.) — Italian surname origin dictionary
- Ethiopian name tokens (GitHub lehagere/ethiopian-names, 40/60 condominium list)
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
- Where does the name Losa come from?
- a flat stone slab, perhaps a boundary marker of some kind, Sp. losa (of pre-Roman origin, probably Celt.; cf. Gael. leac, W llech). Cogn.: Cat.: Llosa. Recorded by A dictionary of surnames.
- How do you pronounce Losa?
- A machine transcription gives /losa/ (IPA) for Spanish.
- What does the name Losa mean?
- Recorded meaning: a flat stone slab, perhaps a boundary marker of some kind, Sp.
- In which country does Losa have the most bearers?
- In Spain, the national register counted about 3.3 thousand people named Losa, more than in any other country we hold, where it is most often spelled losa.
- Where is Losa most common?
- Losa is densest in Spain, where the national register counts about 1 in 15 thousand people carrying it.
- How common is the name Losa?
- In Spain, the national register counted 3,296 people named Losa, about 1 in 15 thousand residents.
What do you want to know about Losa?
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/losaThe 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, “Losa”. Data snapshot 2026-10-10.