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Lio

#3,909 in 2025Boys' name

Variant of Leo

Lio has been given to 371 babies in the U.S. since 2004. In 2025 it ranked #3,909 of 13,926 boys’ names in use. Its peak year was 2024, with 44 recorded.

Babies named Lio, 2025

1 in 118,000

Lio over time, 1880–2025

Boys
020406018801900192019401960198020002020

Based on births in the U.S. Babies given the name each year. Hover the chart — or focus it and use the arrow keys — for any year. Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.

Lio: meaning, origin, and history

Variant of Leo

Deeper origin not confirmed in the cited records

What Lio means

Lio is a variant of Leo.

Meaning behind the documented name family

The name developed through Lio → Leo. The family’s meaning is “lion”, recorded in English with the source elements leō.

Related names and everyday forms

Related names include Leo.

American usage and historical context

In the United States, 371 boys were recorded with the name Lio between 2004 and 2025. Its highest annual count was 44 in 2024; its best national rank was #2,897 in 2024.

Over 5 years its rank rose, from #4,796 in 2020 to #3,909 in 2025. Over 10 years its rank rose, from #5,638 in 2015 to #3,909 in 2025.

Sources & methodologyReferences, data & attribution

Meaning, origin, and language notes draw on the references below.

American popularity figures use published Social Security Administration records for this exact spelling. Counts below five for a name, sex, and year are omitted.

Wiktionary material is available under CC BY-SA 4.0.

How common is Lio?

Everything below is computed from the 2025 data — the most recent year available.

Among all babies, 2025
1 in 118,000
28 of 3,315,165 births
Among boys only
1 in 61,000
<0.01% of boys
Rank, 2025
#3,909
of 13,926 boys’ names in use
Coin-flip room size
82,069 kids
Even odds of a second one

Where Lio sits on the popularity scale

Rarest published (5 a year)#1 — Liam (20,818)

Chance at least one other child shares the name

If the other children were drawn at random from the 2025 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.

Class of 20Under 1%
Class of 30Under 1%
Grade of 100Under 1%
School of 500Under 1%

Put another way: gather 82,069 children born in 2025 and it's an even bet that one of them is another Lio. In a class of 30 the chance is Under 1%.

When Lios were born

Half of everyone ever recorded as Lio was born before 2019 — so the typical Lio is around 6 today.

Median birth year
2019
About 6 years old
Biggest decade
2020s
48.0% of all use
Born in the last 25 years
100.0%
A modern name
Recorded since 1950
371
People you could plausibly meet
Choose a decade

2020s — 48.0% of all recorded uses (178).

Is Lio rising or falling?

Rank movement and count movement can disagree — the number of distinct names in use keeps growing, so a name holding a steady count still slides down the list. Both are shown.

Rank vs 1 year ago
−1,012
Places dropped
Rank vs 5 years ago
+887
Places climbed
Rank vs 10 years ago
+1,729
Places climbed
Births vs 10 years ago
1.75×
More babies than then
Share of its own peak
63.6%
Peak was 2024 (44)
Years since peak
1
Years
Year-to-year steadiness
Volatile
42.8% average annual change
Best rank ever
#2,897
2024

Where Lio is used

Across 1910–2025, Lio was most concentrated in California — about 1 in — boys, against 1 in 437,535 across all states with data. It was least common in Texas (1 in —).

00 per 100,000

Most concentrated

  1. 1California1 in —
  2. 2Florida1 in —
  3. 3Texas1 in —

Shading is the share of that state's recorded boys given this name, not the raw count — otherwise the map would just show which states are biggest. Unshaded states have no published records for this period. U.S. birth records suppress state-year counts below 5; state counts therefore don't add up to the national total. Every state links to its full rankings. Lio has too little recent state data to map, so this covers all years from 1910.

Lio around the world

Where Lio ranks in official birth records elsewhere in the world. Rankings only — the number of births isn’t comparable between places, so it isn’t shown.

  • England & Wales
    2004–2025
    #2,440
    in 2025
  • Scotland
    2020–2021
    #533
    in 2021
  • France
    2016–2025
    #544
    in 2025
  • Canada
    2017–2024
    #2,134
    in 2024
  • South Australia
    1965–1965
    #574
    in 1965

Popularity data from Office for National Statistics, National Records of Scotland, Institut national de la statistique et des études économiques, Statistics Canada and Consumer and Business Services (South Australia). ONS, NRS data under Open Government Licence v3.0. INSEE data under Licence Ouverte / Etalab 2.0. StatCan data under Statistics Canada Open Licence. CBS SA data under CC BY 4.0.

Lio by the numbers

The raw record for each sex the name is used for.

As a boy's name

Rank in 2025
#3,909
Trend vs 5 yrs ago
Up 887
Best rank ever
#2,897
2024
Peak year
2024
44 that year
First recorded
2004
Last recorded
2025
All-time count
371
Count in 2025
28

Names similar to Lio

Matched on shared beginnings and endings, similar length, and comparable popularity.

LionLiorHelioAmilioEmelioAmelioEvelioGiulioTulioCelioLionellEmillioElioOtilioEllioLionalMilioEzelioDelioAmillioAmalioTullioEulalioLionardo

Sibling names for Lio

Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.

Explore around Lio

Top names of 2024, Lio's peak yearThe 2020s in fullOther names that peaked in 2024Boys' names starting with L