Guilio
Boys' nameMeaning not yet documented
Guilio has been given to 26 babies in the U.S. since 1924. It was used fewer than 5 times in 2025, so it doesn't appear in the latest year's list — today it's a genuinely uncommon pick. Its peak year was 1927, with 8 recorded.
Babies named Guilio, 1941
1 in 406,000
Guilio over time, 1880–2025
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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.
How common is Guilio?
Guilio had fewer than 5 recorded uses in 2025, so these figures use 1941, the last year it was published.
- Among all babies, 1941
- 1 in 406,000
- 6 of 2,436,399 births
- Among boys only
- 1 in 205,000
- <0.01% of boys
- Rank, 1941
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 281,465 kids
- Even odds of a second one
Where Guilio sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 1941 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 281,465 children born in 1941 and it's an even bet that one of them is another Guilio. In a class of 30 the chance is Under 1%.
When Guilios were born
Half of everyone ever recorded as Guilio was born before 1927 — so the typical Guilio is around 98 today.
- Biggest decade
- 1920s
- 76.9% of all use
- Born in the last 25 years
- 100.0%
- A modern name
- Recorded since 1950
- 0
- People you could plausibly meet
1920s — 76.9% of all recorded uses (20).
Is Guilio 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
- —
- Not ranked then
- Rank vs 5 years ago
- New entry
- Not ranked then
- Rank vs 10 years ago
- —
- Not ranked then
- Births vs 10 years ago
- —
- Not published both years
- Share of its own peak
- 0%
- Peak was 1927 (8)
- Years since peak
- 98
- Years
- Year-to-year steadiness
- Volatile
- 25.0% average annual change
Spellings of Guilio
Guilio is not the most common spelling — Julio is, with 52.4% against Guilio's 0.02%.
Guilio around the world
Where Guilio 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.
- France1926–2024#5,693in 2024
Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.
Guilio by the numbers
The raw record for each sex the name is used for.
Names similar to Guilio
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Guilio
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.