Acacius
Boy name · #3940 in 2025 · Very rare
How old is the name Acacius? In official American birth records, Acacius has been tracked continuously since 2015, giving it 10 years of documented American history.
In 2025, 28 baby boys were named Acacius, placing it at #3940 in the official national rankings. A decade ago it stood at #10644, so the name has been rising over the past ten years. Roughly one in every 64,286 boys born in 2025 was named Acacius.
The 10-year story
Acacius first appears in the Social Security records in 2015, when 6 boys received the name. Its all-time peak is essentially right now: 2025, with 28 babies and a rank of #3848. Names at their peak can keep climbing — or be one trend cycle from the long slide that eventually hits most popular names. Following the curve matters more than today's snapshot: a name's position on its rise-peak-decline arc is the best predictor of how common it will feel in a kindergarten class five years from now.
Babies named Acacius per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Acacius against up to 5 other names.
Uniqueness: will there be another Acacius in class?
On our rarity read — which blends how common Acacius is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Acacius will likely be the only one in the room, with the occasional spelling-out as the price.
Where Acacius is most common
State-level data for Acacius is too sparse in 2025 to rank by rate — in most states its count falls below the SSA's per-state reporting threshold (counts under 5 are withheld).
Names like Acacius
Statistically, parents drawn to Acacius tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Akaius, Makaius, Azaylen, Akyris, and Akaal.
AkaiusMakaiusAzaylenAkyrisAkaalAtlusJasailJhyzir
Rank history (last 25 years)
| Year | Babies named Acacius | Rank |
|---|---|---|
| 2025 | 28 | #3848 |
| 2015 | 6 | #10644 |
Frequently asked questions
How old is the name Acacius?
In official American birth records, the name Acacius first appeared in 2015 (over 10 years ago), when 6 newborn boys received the name. It has been tracked in modern national records for 10 years.
Is Acacius a popular boy name?
Acacius ranked #3940 among boys in 2025 with 28 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #10644.
When was the name Acacius most popular?
Acacius peaked in 2025, when 28 American boys received the name (ranked #3848 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Acacius?
In 2025, roughly 1 in 64,286 newborn American boys was named Acacius. On our rarity scale (rarity blended with momentum) we classify it as "very rare".
Data source: Official American birth records, 1880–2025, national and state files. Counts reflect registered birth records for American families.