Sirius
Boy name · #3496 in 2025 · Very rare
How old is the name Sirius? In official American birth records, Sirius has been tracked continuously since 1999, giving it 26 years of documented American history.
Sirius ranks #3496 among American boys' names as of 2025, with 33 newborns given the name that year. A decade ago it stood at #2919, so the name has been falling over the past ten years. Roughly one in every 54,545 boys born in 2025 was named Sirius.
The 26-year story
Sirius first appears in the Social Security records in 1999, when 9 boys received the name. Its all-time peak is essentially right now: 2022, with 61 babies and a rank of #2325. 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 Sirius per year. Source: Official national birth records.
Unlock the 5-year forecast and compare Sirius against up to 5 other names.
Uniqueness: will there be another Sirius in class?
On our rarity read — which blends how common Sirius is today with its five-year momentum — the name reads as "very rare". A high score means genuine rarity — your Sirius will likely be the only one in the room, with the occasional spelling-out as the price.
Where Sirius is most common
State-level data for Sirius 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 Sirius
Statistically, parents drawn to Sirius tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Arius, Kassius, Gaius, Tiberius, and Ignatius.
AriusKassiusGaiusTiberiusIgnatiusCyprusSyrusEliyas
Rank history (last 25 years)
| Year | Babies named Sirius | Rank |
|---|---|---|
| 2025 | 33 | #3450 |
| 2024 | 52 | #2559 |
| 2023 | 53 | #2510 |
| 2022 | 61 | #2325 |
| 2021 | 43 | #2862 |
| 2020 | 37 | #3074 |
| 2019 | 54 | #2464 |
| 2018 | 43 | #2796 |
| 2017 | 38 | #3071 |
| 2016 | 40 | #2935 |
| 2015 | 40 | #2919 |
| 2014 | 25 | #4014 |
| 2013 | 23 | #4180 |
| 2012 | 15 | #5720 |
| 2011 | 22 | #4356 |
| 2010 | 19 | #4848 |
| 2009 | 24 | #4160 |
| 2008 | 17 | #5249 |
| 2007 | 17 | #5210 |
| 2006 | 27 | #3686 |
| 2005 | 14 | #5578 |
| 2004 | 6 | #9948 |
| 2003 | 12 | #5877 |
| 1999 | 9 | #6530 |
Frequently asked questions
How old is the name Sirius?
In official American birth records, the name Sirius first appeared in 1999 (over 26 years ago), when 9 newborn boys received the name. It has been tracked in modern national records for 26 years.
Is Sirius a popular boy name?
Sirius ranked #3496 among boys in 2025 with 33 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #2919.
When was the name Sirius most popular?
Sirius peaked in 2022, when 61 American boys received the name (ranked #2325 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Sirius?
In 2025, roughly 1 in 54,545 newborn American boys was named Sirius. 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.