Acacius

#3,848 in 2025Boys' name

Form of Akakios

Acacius has been given to 34 babies in the U.S. since 2015. In 2025 it ranked #3,848 of 13,926 boys’ names in use. Its peak year was 2025, with 28 recorded.

Babies named Acacius, 2025

1 in 118,000

Acacius over time, 1880–2025

Boys

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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Acacius: meaning, origin, and history

Form of Akakios

Ancient Greek

What Acacius means

Acacius is a form of Akakios.

Origin, language, and formation

Acacius is used in English. Its origins include Ancient Greek.

Acacius comes through Ancient Greek Ἀκάκιος.

Related names and everyday forms

Related names include Akakios.

Pronunciation and spelling

In English, Acacius is pronounced /əˈkeɪ.ʃəs/.

American usage and historical context

In the United States, 34 boys were recorded with the name Acacius between 2015 and 2025. Its highest annual count was 28 in 2025; its best national rank was #3,848 in 2025.

Over 10 years its rank rose, from #10,670 in 2015 to #3,848 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Acacius?

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

Among all babies, 2025: 1 in 118,000; 28 of 3,315,165 births
Among boys only: 1 in 61,000; <0.01% of boys
Rank, 2025: #3,848; of 13,926 boys’ names in use
Coin-flip room size: 82,069 kids; Even odds of a second one

Where Acacius 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 82,069 children born in 2025 and it's an even bet that one of them is another Acacius. In a class of 30 the chance is Under 1%.

When Acaciuss were born

Half of everyone ever recorded as Acacius was born before 2025 — so the typical Acacius is around 0 today.

Median birth year: 2025; About 0 years old
Biggest decade: 2020s; 82.4% of all use
Born in the last 25 years: 100.0%; A modern name
Recorded since 1950: 34; People you could plausibly meet

Choose a decade

2020s — 82.4% of all recorded uses (28).

Is Acacius 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: +6,822; Places climbed
Births vs 10 years ago: 4.67×; More babies than then
Share of its own peak: 100.0%; Peak was 2025 (28)
Years since peak: Peaking now; At its all-time high
Year-to-year steadiness: Not enough data; Too few years
Best rank ever: #3,848; 2025

Spellings of Acacius

Acacius is not the most common spelling — Caius is, with 63.2% against Acacius's 0.92%.

Caius63.2%2,329
Adarius35.9%1,321
Acacius0.92%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 Acacius is used

Across 1910–2025, Acacius was most concentrated in California — about 1 in — boys, against 1 in 3,486,540 across all states with data.

00 per 100,000

State popularity map

Most concentrated

1California1 in —

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. Acacius has too little recent state data to map, so this covers all years from 1910.

Acacius by the numbers

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

As a boy's name

Rank in 2025: #3,848
Trend vs 5 yrs ago: New entry
Best rank ever: #3,848; 2025
Peak year: 2025; 28 that year
First recorded: 2015
Last recorded: 2025
All-time count: 34
Count in 2025: 28

Names similar to Acacius

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

Arcaius Zakaius Jakaius Zakyius Jacaius Kasius Zavius Makaius Aelius Zakius Levius Zadarius Akaius Trevius Dharius Acari Amirius Jerrius Arcadius Jullius Adrius Kyius Jairius Acamas

Sibling names for Acacius

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

For a sister

Leonor Karleigh Keren Kendyl Eloisa Leigha Shoshana Nila

For a brother

Evans Hamilton Caesar Tobin Leander Jerimiah Jorden Henri

Explore around Acacius

Top names of 2025, Acacius's peak year The 2020s in full Other names that peaked in 2025 Boys' names starting with A