Leontius
given name · Latin script
Meaning: emperor of the Eastern Roman
Recorded as a male name· opposite-gender records fall within measured source noise
(measured from records)Officially recorded in 4 countries · latest register: Siseministeerium, 2023
/lɛontius/(machine-generated) Indonesian · model-generated
Leontius is a male given name written in the Latin script, most frequently recorded in Finland.
Meaning & origin
(measured from records)emperor of the Eastern Roman
Cited for this meaning 1
- Pronouncing Dictionary of Proper Names
Attested across 13 languages in the etymology graph.
Where in the world
(measured from records)Leontius counted together with the spellings and other-language forms grouped with it. Where a register counted another spelling, the row names it.
| Country | Most common spelling | ||
|---|---|---|---|
| FI Finland | — | 61 | — |
| NL Netherlands | — | 11 | — |
| SE Sweden | — | 7 | — |
| BE Belgium | — | 1 | — |
| EE Estonia | — | listed | — |
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: DVV — Nimipalvelu (Finnish name service, per-name lookup); Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); Skatteverket — Sök hur många som har ett visst namn (living population); Familienaam.be — Belgian family-name frequency (population register); the ee-siseministeerium-registry 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)Leontius 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.
In English, Empire
as a namePronouncing Dictionary of Proper Names
In Latin, An East Roman Emperor, Leontius
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)- Leontius of Caesareab. 250Bishop of Caesarea Mazaca
- Leontius Pełczyckib. 1505Polish Bishop
- Leoncjusz Ciuciurab. 1930PLnot in their usual namePolish composer
- Leontius of TripoliLYRoman soldier and Christian martyr
- Leontius of AutunFRBishop of Autun
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)A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.
Evidence
(measured from records)7 registers and reference works attest this spelling, across 4 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| FI Finland | DVV — Nimipalvelu (Finnish name service, per-name lookup) | — | 61 | #4,477 |
| FI Finland | DVV — Nimipalvelu (Finnish name service, per-name lookup) | — | 35 | #10,031 |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018) | — | 11 | #16,896 |
| SE Sweden | Skatteverket — Sök hur många som har ett visst namn (living population) | — | 7 | #40,791 |
| FI Finland | DVV — Etunimitilasto (Finnish given names register) | — | 7 | — |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017) | — | 6 | #38,231 |
| EE Estonia | Siseministeerium — population register name list 2023 | 2023 | — | — |
Reference works 1
- 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 Leontius mean, and where does it come from?
- emperor of the Eastern Roman Recorded by Pronouncing Dictionary of Proper Names.
- What are other forms of the name Leontius?
- In the etymology graph, Leo, Leoncio and Léo are forms of the same name in other languages.
- How do you pronounce Leontius?
- It depends on the language: in Indonesian /lɛontius/; in Swahili /leontius/. Transcriptions are machine-generated except where a dictionary is named.
- Is Leontius a male or female name?
- Leontius is a male name in our records. Opposite-gender entries fall within the cross-gender noise we measure in the source data, so we don't report them as usage.
- In which country does Leontius have the most bearers?
- Leontius is most frequently recorded in Finland.
What do you want to know about Leontius?
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/leontiusThe 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, “Leontius”. Data snapshot 2026-10-13.