Sion
Boy name · #2946 in 2025 · Uniqueness 72/100
Sion is currently the #2946 boy name in the United States — 42 babies received it in 2025. A decade ago it stood at #4407, so the name has been rising over the past ten years. Roughly one in every 42,857 boys born in 2025 was named Sion.
The 113-year story
Sion first appears in the Social Security records in 1912, when 5 boys received the name. Its all-time peak is essentially right now: 2022, with 43 babies and a rank of #2919. 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 Sion per year, 1880–2025. Source: SSA.
Unlock the 5-year forecast and compare Sion against up to 5 other names.
Uniqueness: will there be another Sion in class?
Sion scores 72 out of 100 on our uniqueness scale, which blends current rarity with five-year momentum — putting it in the "rare" band. A high score means genuine rarity — your Sion will likely be the only one in the room, with the occasional spelling-out as the price.
Where Sion is most common
State-level data for Sion is sparse in 2025 — the name's footprint is too small for most states to report (the SSA suppresses counts under 5 per state for privacy).
Names like Sion
Statistically, parents drawn to Sion tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Lion, Avion, Rion, Syon, and Xion.
LionAvionRionSyonXionKayvionZyionArion
Rank history (last 25 years)
| Year | Babies named Sion | Rank |
|---|---|---|
| 2025 | 42 | #2941 |
| 2024 | 31 | #3605 |
| 2023 | 43 | #2895 |
| 2022 | 43 | #2919 |
| 2021 | 33 | #3427 |
| 2020 | 37 | #3074 |
| 2019 | 38 | #3103 |
| 2018 | 21 | #4610 |
| 2017 | 18 | #5111 |
| 2016 | 18 | #5124 |
| 2015 | 22 | #4407 |
| 2014 | 25 | #4014 |
| 2013 | 20 | #4621 |
| 2012 | 30 | #3530 |
| 2011 | 27 | #3792 |
| 2010 | 22 | #4366 |
| 2009 | 23 | #4278 |
| 2008 | 15 | #5767 |
| 2007 | 16 | #5434 |
| 2006 | 18 | #4865 |
| 2005 | 15 | #5278 |
| 2004 | 17 | #4793 |
| 2003 | 15 | #5035 |
| 2002 | 23 | #3670 |
| 2001 | 25 | #3410 |
Frequently asked questions
Is Sion a popular boy name?
Sion ranked #2946 among boys in 2025 with 42 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #4407.
When was the name Sion most popular?
Sion peaked in 2022, when 43 American boys received the name (ranked #2919 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Sion?
In 2025, roughly 1 in 42,857 newborn American boys was named Sion. It scores 72/100 on our uniqueness scale (rarity blended with momentum), which we classify as "rare".
Data source: U.S. Social Security Administration name statistics, 1880–2025, national and state files. Counts reflect Social Security card applications; names with fewer than 5 occurrences in a state-year are suppressed by the SSA.