Alexius

UnisexGirls' nameBoys' name

Helper, defender

Alexius has been given to 1,650 babies in the U.S. since 1978. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1998, with 121 recorded. It's used for both sexes: 92% girls, 8% boys all-time.

Babies named Alexius, 2017

1 in 447,000

Alexius over time, 1880–2025

GirlsBoys
05010015018801900192019401960198020002020

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Girls or boys — Alexius over time

In 2018, Alexius went to 0% girls and 100% boys.

19282018

A sex is only published in years it reached five applications, so a stretch at 0% or 100% means the other side stayed under that floor — not that it was never used.

Alexius: meaning, origin, and history

Helper, defender

Ancient Greek

What Alexius means

Alexius means “helper, defender”, associated with Álexis.

Dictionary etymologyReferences, data & attribution

From Latin Alexius, from Ancient Greek Ἀλέξιος (Aléxios) or Ἄλεξις (Álexis, “helper, defender”).

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

Wiktionary material is available under CC BY-SA 4.0.

Origin, language, and formation

Alexius is used in English and Latin. Its origins include Ancient Greek.

Alexius comes through Latin Alexius and Ancient Greek Ἀλέξιος.

Pronunciation and spelling

In English, Alexius is pronounced /əˈlɛk.si.əs/.

American usage and historical context

In the United States, 1,515 girls were recorded with the name Alexius between 1978 and 2017. Its highest annual count was 121 in 1998; its best national rank was #1,404 in 1997.

In the United States, 135 boys were recorded with the name Alexius between 1928 and 2018. Its highest annual count was 12 in 1978; its best national rank was #3,218 in 1978.

How common is Alexius?

Alexius had fewer than 5 recorded uses in 2025, so these figures use 2017, the last year it was published.

Among all babies, 2017
1 in 447,000
8 of 3,577,106 births
Among girls only
1 in 216,000
<0.01% of girls
Rank, 2017
Unranked
Fewer than 5 uses
Coin-flip room size
309,934 kids
Even odds of a second one

Where Alexius sits on the popularity scale

Rarest published (5 a year)#1 — Olivia (13,544)

Chance at least one other child shares the name

If the other children were drawn at random from the 2017 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 309,934 children born in 2017 and it's an even bet that one of them is another Alexius. In a class of 30 the chance is Under 1%.

When Alexiuss were born

Half of everyone ever recorded as Alexius was born before 1999 — so the typical Alexius is around 26 today.

Median birth year
1999
About 26 years old
Biggest decade
1990s
51.0% of all use
Born in the last 25 years
89.0%
A modern name
Recorded since 1950
1,515
People you could plausibly meet
Choose a decade

1990s — 51.0% of all recorded uses (772).

Is Alexius 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
—
Not ranked then
Rank vs 5 years ago
New entry
Not ranked then
Rank vs 10 years ago
—
Not ranked then
Births vs 10 years ago
—
Not published both years
Share of its own peak
0%
Peak was 1998 (121)
Years since peak
27
Years
Year-to-year steadiness
Shifting
18.4% average annual change
Best rank ever
#1,404
1997

Spellings of Alexius

Alexius is not the most common spelling — Alexis is, with 78.3% against Alexius's 0.34%.

Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.

Where Alexius is used

Across 1910–2025, Alexius was most concentrated in Mississippi — about 1 in 33,333 girls, against 1 in 166,972 across all states with data. It was least common in Virginia (1 in —).

03 per 100,000

Most concentrated

  1. 1Mississippi1 in 33,333
  2. 2Alabama1 in 50,000
  3. 3Georgia1 in 50,000
  4. 4Louisiana1 in 100,000
  5. 5Missouri1 in 100,000
  6. 6North Carolina1 in 100,000
  7. 7South Carolina1 in 100,000
  8. 8Tennessee1 in 100,000

Shading is the share of that state's recorded girls 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. Alexius has too little recent state data to map, so this covers all years from 1910.

Alexius around the world

Where Alexius 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
    2017–2017
    #5,765
    in 2017

Popularity data from Office for National Statistics. ONS data under Open Government Licence v3.0.

Alexius by the numbers

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

As a girl's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#1,404
1997
Peak year
1998
121 that year
First recorded
1978
Last recorded
2017
All-time count
1,515
Count in 2025
Under 5

As a boy's name

Rank in 2025
Unranked
Trend vs 5 yrs ago
—
Best rank ever
#3,218
1978
Peak year
1978
12 that year
First recorded
1928
Last recorded
2018
All-time count
135
Count in 2025
Under 5

Names similar to Alexius

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

Sibling names for Alexius

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 Alexius