Aloysius
given name · Latin script
Meaning: Latin form of Louis; borne by St Aloysius Gonzaga, canonised 1726, and used in Ireland in his commemoration
Recorded as a male name· opposite-gender records fall within measured source noise
/aləwɪʃəs/(machine-generated) pronunciation, model-generated
Aloysius is a given name written in the Latin script, with more bearers in Nigeria than in any other country.
- SGSingapore≈1 in 8.4K(inferred from the name graph)
- NGNigeria≈1 in 13K
- USUnited States1 in 190K
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.
- Nigeria (inferred from the name graph)
- Sources
- 236 (measured from records)
- 1 in 1.5K (inferred from the name graph)
≈17,000 people, est.
Highest-authority source
Netherlands
measured from records inferred from the name graph
Meaning & origin(measured from records)
Latin form of Louis; borne by St Aloysius Gonzaga, canonised 1726, and used in Ireland in his commemoration.
Sources 1
- Irish first names
Attested across 9 languages in the etymology graph.
Where in the world(measured from records)
Aloysius 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 | ||||
|---|---|---|---|---|---|---|
| NG Nigeria | — | ≈17,000 est. | ≈1 in 13K | listed | Aloysius | 57 |
| NL Netherlands | — | 11,204 | 1 in 1.5K | 11K | Aloysius | 43 |
| UG Uganda | #460 | ≈3,300 est. | ≈1 in 13K | 2 | Aloysius | 18 |
| US United States | — | 1,749 | 1 in 190K | 1.7K | Aloysius | 236 |
| MY Malaysia | — | ≈930 est. | ≈1 in 35K | — | Aloysius | 38 |
| SG Singapore | #641 | ≈740 est. | ≈1 in 8.4K | — | Aloysius | 90 |
| GY Guyana | #566 | 42 | 1 in 18K | 42 | Aloysius | 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: Census Bureau — First Name Frequency 2020 by sex; Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018); the wgnd-ng-names register; Guyana — Official List of Electors July 2025; Wikidata humans by citizenship — given & family names. 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)
Aloysius is also recorded in 4 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.
Pronounced ‘al-oo-ish-us’; of unknown origin, possibly a Latinized form of a Provengal version of Louis. It was relatively common in Italy in the Middle Ages, and has subsequently enjoyed some popularity among Roman Catholics in honour of St Aloysius Gonzaga (1568-91), who was born in Lombardy.
as a nameA concise dictionary of first names
In English, A male given name from the Germanic languages, notably of a 16th-century Italian saint.
as a wordkaikki.org Wiktionary extract (IPA + transliterations)
In English, Teutonic; famous warrior
as a nameBaby names, 25,350 baby names nicknames for your family, friends pets, including the top 100 names, 2,000 most popular…
English, German, and Dutch: of unknown origin, possibly a Latinized form of a Provençal version of LOUIS . It was relatively common in Italy in the Middle Ages, and has subsequently enjoyed some popularity among Roman Catholics in honour of St Aloysius Gonzaga (1568–91), who was born in Lombardy. Variant: German: Alois. Cognates: Polish: Alojzy. Czech: Alois .
as a word
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)
- Aloysius Bertrandb. 1807FRFrench poet (1807–1841)
- Tad Dorganb. 1877USnot in their usual nameAmerican cartoonist (1877-1929)
- Edmund A. Walshb. 1885USnot in their usual nameAmerican Jesuit and founder of Georgetown University's School of Foreign Service (1885–1956)
- Frank A. Barrettb. 1892USnot in their usual nameAmerican politician (1892-1962)
- Bert Rölingb. 1906NLnot in their usual nameDutch jurist (1906–1985)
- R. A. Laffertyb. 1914USnot in their usual nameAmerican writer (1914–2002)
- Fuad Stephensb. 1920MYnot in their usual nameMalaysian politician
- Joseph Wambaughb. 1937USnot in their usual nameAmerican writer (1937–2025)
- Louis van Gaalb. 1951NLnot in their usual nameDutch association football manager (born 1951)
- Elvis Costellob. 1954GBnot in their usual nameEnglish singer-songwriter (born 1954)
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)
Attested in 42 sources across 25 countries.
| Country | Register | Year | Count | Rank |
|---|---|---|---|---|
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018) | — | 11K | #202 |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (live per-name BRP counts, 1790-2017) | — | 2.9K | #1,090 |
| US United States | Census Bureau — First Name Frequency 2020 by sex | 2020 | 1.7K | #8,321 |
| NL Netherlands | Meertens NVB — Nederlandse Voornamenbank (all-time BRP bearer counts, 2018) | — | 236 | #3,251 |
| US United States | SSA — National Baby Names (1880–present) | 1921 | 199 | — |
| US United States | SSA — National Baby Names (1880–present) | 1916 | 199 | — |
| US United States | SSA — National Baby Names (1880–present) | 1920 | 194 | — |
| US United States | SSA — National Baby Names (1880–present) | 1919 | 192 | — |
| US United States | SSA — National Baby Names (1880–present) | 1915 | 187 | — |
| US United States | SSA — National Baby Names (1880–present) | 1918 | 183 | — |
| US United States | SSA — National Baby Names (1880–present) | 1917 | 180 | — |
| US United States | SSA — National Baby Names (1880–present) | 1924 | 164 | — |
Reference works 4
- Dictionary of American Family Names
- Nederlandse FamilienamenBank (Dutch surname bank; ex-Meertens Instituut, now CBG)2007
- Wikipedia given-name tokens
- 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 Aloysius mean, and where does it come from?
- Latin form of Louis; borne by St Aloysius Gonzaga, canonised 1726, and used in Ireland in his commemoration. Recorded by Irish first names.
- Is Aloysius a male or female name?
- Aloysius 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.
- How do you pronounce Aloysius?
- A machine transcription gives /aləwɪʃəs/ (IPA) for English.
- What are other forms of the name Aloysius?
- In the etymology graph, Luis, Luiz and Lois are forms of the same name in other languages.
- How common is the name Aloysius?
- In the Netherlands, the national register counted 11,204 people named Aloysius, about 1 in 1.5 thousand residents.
- How common is Aloysius compared with other names?
- In Uganda, Aloysius is the 460th most common given name of 2,133 given names recorded there.
- In which country does Aloysius have the most bearers?
- Mondonomo estimates about 17 thousand people named Aloysius in Nigeria, more than in any other country we hold, where it is most often spelled aloysius.
- Where is Aloysius most common?
- Measured as a share of residents rather than as a count, Aloysius is densest in the Netherlands — about 1 in 1.5 thousand people — even though Nigeria holds more of our records for it.
What do you want to know about Aloysius?
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/aloysiusThe 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, “Aloysius” — the 460th most common given name in Uganda. Data snapshot 2026-10-10.