Arius
Boy name · #2701 in 2025 · Very rare
How old is the name Arius? In official American birth records, Arius has been tracked continuously since 1982, giving it 43 years of documented American history.
Arius is currently the #2701 boy name in the United States — 48 babies received it in 2025. A decade ago it stood at #1910, so the name has been falling over the past ten years. Roughly one in every 37,500 boys born in 2025 was named Arius.
Babies named Arius per year. Source: Official national birth records.
The 43-year story
Arius first appears in the Social Security records in 1982, when 6 boys received the name. Its peak came in 2021, when 83 boys were named Arius — good for #1853 that year. Today's parents encounter it on its way down the popularity curve, which for many parents is exactly the appeal. 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.
Unlock the 5-year forecast and compare Arius against up to 5 other names.
Uniqueness: will there be another Arius in class?
On our rarity read — which blends how common Arius is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Arius will likely be the only one in the room, with the occasional spelling-out as the price.
Where Arius is most common
State-level data for Arius 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 Arius
Statistically, parents drawn to Arius tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Sirius, Gaius, Kassius, Tiberius, and Tidus.
SiriusGaiusKassiusTiberiusTidusIgnatiusAbbasCaius
Rank history (last 25 years)
| Year | Babies named Arius | Rank |
|---|---|---|
| 2025 | 48 | #2676 |
| 2024 | 52 | #2559 |
| 2023 | 60 | #2315 |
| 2022 | 57 | #2438 |
| 2021 | 83 | #1853 |
| 2020 | 54 | #2419 |
| 2019 | 52 | #2525 |
| 2018 | 49 | #2579 |
| 2017 | 52 | #2450 |
| 2016 | 48 | #2587 |
| 2015 | 76 | #1910 |
| 2014 | 56 | #2317 |
| 2013 | 43 | #2715 |
| 2012 | 24 | #4131 |
| 2011 | 30 | #3510 |
| 2010 | 36 | #3128 |
| 2009 | 21 | #4582 |
| 2008 | 18 | #5067 |
| 2007 | 26 | #3893 |
| 2006 | 17 | #5072 |
| 2005 | 16 | #5034 |
| 2004 | 9 | #7536 |
| 2003 | 9 | #7245 |
| 2002 | 8 | #7643 |
| 2001 | 16 | #4676 |
Frequently asked questions
How old is the name Arius?
In official American birth records, the name Arius first appeared in 1982 (over 43 years ago), when 6 newborn boys received the name. It has been tracked in modern national records for 43 years.
Is Arius a popular boy name?
Arius ranked #2701 among boys in 2025 with 48 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #1910.
When was the name Arius most popular?
Arius peaked in 2021, when 83 American boys received the name (ranked #1853 that year). Since 2021 the name has declined from that high.
How rare is the name Arius?
In 2025, roughly 1 in 37,500 newborn American boys was named Arius. 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.