Lio
Boy name · #3922 in 2025 · Uniqueness 67/100
Lio is currently the #3922 boy name in the United States — 28 babies received it in 2025. A decade ago it stood at #5507, so the name has been rising over the past ten years. Roughly one in every 64,286 boys born in 2025 was named Lio.
Babies named Lio per year, 1880–2025. Source: SSA.
The 21-year story
Lio first appears in the Social Security records in 2004, when 6 boys received the name. Its all-time peak is essentially right now: 2024, with 44 babies and a rank of #2873. 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.
Unlock the 5-year forecast and compare Lio against up to 5 other names.
Uniqueness: will there be another Lio in class?
Lio scores 67 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 Lio will likely be the only one in the room, with the occasional spelling-out as the price.
Where Lio is most common
State-level data for Lio 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 Lio
Statistically, parents drawn to Lio tend to be choosing among names with similar popularity arcs, era profiles, and sounds — the closest matches in our model are Amilio, Amelio, Ario, Akio, and Geo.
AmilioAmelioArioAkioGeoMiroLakshMako
Rank history (last 25 years)
| Year | Babies named Lio | Rank |
|---|---|---|
| 2025 | 28 | #3848 |
| 2024 | 44 | #2873 |
| 2023 | 37 | #3228 |
| 2022 | 28 | #3879 |
| 2021 | 21 | #4628 |
| 2020 | 20 | #4698 |
| 2019 | 25 | #4114 |
| 2018 | 22 | #4476 |
| 2017 | 24 | #4224 |
| 2016 | 12 | #6726 |
| 2015 | 16 | #5507 |
| 2014 | 20 | #4702 |
| 2013 | 20 | #4621 |
| 2012 | 19 | #4862 |
| 2011 | 5 | #12287 |
| 2010 | 9 | #8139 |
| 2008 | 9 | #8324 |
| 2006 | 6 | #10662 |
| 2004 | 6 | #9948 |
Frequently asked questions
Is Lio a popular boy name?
Lio ranked #3922 among boys in 2025 with 28 babies given the name — outside the top 500, making it an uncommon pick. Ten years earlier it ranked #5507.
When was the name Lio most popular?
Lio peaked in 2024, when 44 American boys received the name (ranked #2873 that year). That peak is current — the name is at or near its all-time high right now.
How rare is the name Lio?
In 2025, roughly 1 in 64,286 newborn American boys was named Lio. It scores 67/100 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.