Name Awesome

Aloysius

#4,863 in 2025Boys' name

Loud; famous + battle, through Louis

Aloysius has been given to 5,724 babies in the U.S. since 1880. In 2025 it ranked #4,863 of 13,926 boys’ names in use. Its peak year was 1916, with 199 recorded.

Babies named Aloysius, 2025

1 in 166,000

Aloysius over time, 1880–2025

Boys
05010015020018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Aloysius: meaning, origin, and history

Loud; famous + battle, through Louis

Germanic languages

What Aloysius means

Aloysius belongs to the name family reached through Aloysius → Louis. Its meaning is “loud; famous + battle”.

Dictionary etymologyReferences, data & attribution

Latinization of Occitan Aloys, an Occitan form of Louis. Doublet of Louis.

Excerpt from Wiktionary: Aloysius (English) · CC BY-SA 4.0

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Aloysius is used in English. Its origins include Germanic languages.

Aloysius comes through Occitan Aloys.

Related names and everyday forms

Related names include Aloys and Louis.

Pronunciation and spelling

In English, Aloysius is pronounced /æl.əʊˈɪʃ.əs/.

American usage and historical context

In the United States, 5,724 boys were recorded with the name Aloysius between 1880 and 2025. Its highest annual count was 199 in 1916; its best national rank was #312 in 1893.

Over 5 years its rank rose, from #5,043 in 2020 to #4,863 in 2025. Over 10 years its rank rose, from #5,066 in 2015 to #4,863 in 2025.

How common is Aloysius?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 166,000
20 of 3,315,165 births
Among boys only
1 in 85,400
<0.01% of boys
Rank, 2025
#4,863
of 13,926 boys’ names in use
Coin-flip room size
114,896 kids
Even odds of a second one

Where Aloysius sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 114,896 children born in 2025 and it's an even bet that one of them is another Aloysius. In a class of 30 the chance is Under 1%.

When Aloysiuss were born

Half of everyone ever recorded as Aloysius was born before 1924 — so the typical Aloysius is around 101 today.

Median birth year
1924
About 101 years old
Biggest decade
1920s
25.8% of all use
Born in the last 25 years
6.7%
Mostly a past generation
Recorded since 1950
1,271
People you could plausibly meet
Choose a decade

1920s — 25.8% of all recorded uses (1,477).

Is Aloysius rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−156
Places dropped
Rank vs 5 years ago
+180
Places climbed
Rank vs 10 years ago
+203
Places climbed
Births vs 10 years ago
1.11×
More babies than then
Share of its own peak
10.1%
Peak was 1916 (199)
Years since peak
109
Years
Year-to-year steadiness
Shifting
22.9% average annual change
Best rank ever
#312
1893

Where Aloysius is used

Across 1910–2025, Aloysius was most concentrated in Pennsylvania — about 1 in 12,500 boys, against 1 in 36,284 across all states with data. It was least common in Nebraska (1 in —).

08 per 100,000

Most concentrated

  1. 1Pennsylvania1 in 12,500
  2. 2Wisconsin1 in 14,286
  3. 3Illinois1 in 25,000
  4. 4Michigan1 in 25,000
  5. 5Minnesota1 in 25,000
  6. 6Indiana1 in 33,333
  7. 7Kansas1 in 33,333
  8. 8Missouri1 in 33,333

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Aloysius has too little recent state data to map, so this covers all years from 1910.

Aloysius around the world

Where Aloysius ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    2014–2024
    #5,120
    in 2024
  • Ireland
    1966–1976
    #316
    in 1976
  • South Australia
    1953–2010
    #754
    in 2010

Popularity data from Office for National Statistics, Central Statistics Office and Consumer and Business Services (South Australia). ONS data under Open Government Licence v3.0. CSO, CBS SA data under CC BY 4.0.

Notable people named Aloysius

People whose public names include Aloysius, backed by Wikidata given-name records and ordered by linked Wikimedia pages. The name may be a middle name.

People data from Wikidata (CC0). Fame is measured, not judged — the order reflects how widely each person is documented, not the U.S. birth records popularity this page is otherwise about.

Aloysius in other languages

Cross-language forms and variants of Aloysius. Linked forms have their own page here.

LoisLuisAloisAloysLouisLuigiAloisiusLuísAlojsAlviseAloisioAloysioAloísio

Variant forms from Wikidata (CC0). Most are used mainly outside the United States; U.S. birth records statistics cover US usage only.

Aloysius by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#4,863
Trend vs 5 yrs ago
Up 180
Best rank ever
#312
1893
Peak year
1916
199 that year
First recorded
1880
Last recorded
2025
All-time count
5,724
Count in 2025
20

Names similar to Aloysius

Matched on shared beginnings and endings, similar length, and comparable popularity.

LadariusIgnatiusOctaviusAlonsoDemariusDarriusJamariusAureliusCassiusDamariusJadariusTiberiusJuniusKadariusAloisDemitriusClaudiusJavariusAlonzaLuciusAdariusMariusLadarriusKassius

Names with a curve like Aloysius

Not spelling — timing. These names rose, peaked and faded in the same years as Aloysius, so they read as being from the same moment even when they look nothing alike.

WaldoAlbinEllsworthCasimirOrvalJuniusIsadoreFayAlphonseElmoBusterGustave

Sibling names for Aloysius

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Aloysius

Top names of 1916, Aloysius's peak yearThe 1910s in fullOther names that peaked in 1893Boys' names starting with ALouis Variations & Nicknames