Kassius
Boy name · #2255 in 2025 · Very rare
How old is the name Kassius? In official American birth records, Kassius has been tracked continuously since 2001, giving it 24 years of documented American history.
Kassius is currently the #2255 boy name in the United States — 63 babies received it in 2025. A decade ago it stood at #2722, so the name has been rising over the past ten years. Roughly one in every 28,571 boys born in 2025 was named Kassius.
The 24-year story
Kassius first appears in the Social Security records in 2001, when 5 boys received the name. Its all-time peak is essentially right now: 2022, with 124 babies and a rank of #1457. 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 Kassius per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Kassius against up to 5 other names.
Uniqueness: will there be another Kassius in class?
On our rarity read — which blends how common Kassius is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Kassius will likely be the only one in the room, with the occasional spelling-out as the price.
Where Kassius is most common
State-level data for Kassius 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 Kassius
Statistically, parents drawn to Kassius tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Sirius, Kaius, Ignatius, Arius, and Klaus.
SiriusKaiusIgnatiusAriusKlausTiberiusNiklausCassius
Rank history (last 25 years)
| Year | Babies named Kassius | Rank |
|---|---|---|
| 2025 | 63 | #2230 |
| 2024 | 84 | #1891 |
| 2023 | 106 | #1632 |
| 2022 | 124 | #1457 |
| 2021 | 117 | #1514 |
| 2020 | 103 | #1579 |
| 2019 | 116 | #1479 |
| 2018 | 84 | #1809 |
| 2017 | 88 | #1746 |
| 2016 | 54 | #2387 |
| 2015 | 44 | #2722 |
| 2014 | 31 | #3456 |
| 2013 | 34 | #3189 |
| 2012 | 22 | #4390 |
| 2011 | 21 | #4509 |
| 2010 | 23 | #4241 |
| 2009 | 17 | #5334 |
| 2008 | 10 | #7698 |
| 2007 | 18 | #4996 |
| 2006 | 8 | #8732 |
| 2004 | 7 | #8927 |
| 2003 | 8 | #7831 |
| 2001 | 5 | #10556 |
Frequently asked questions
How old is the name Kassius?
In official American birth records, the name Kassius first appeared in 2001 (over 24 years ago), when 5 newborn boys received the name. It has been tracked in modern national records for 24 years.
Is Kassius a popular boy name?
Kassius ranked #2255 among boys in 2025 with 63 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2722.
When was the name Kassius most popular?
Kassius peaked in 2022, when 124 American boys received the name (ranked #1457 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Kassius?
In 2025, roughly 1 in 28,571 newborn American boys was named Kassius. 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.