Sylvio
Boys' nameMeaning not yet documented
Sylvio has been given to 463 babies in the U.S. since 1907. 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 1921, with 29 recorded.
Babies named Sylvio, 2015
1 in 617,000
Sylvio 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 Gaps mean the name was given fewer than 5 times that year; these counts are unpublished.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 Sylvio?
Sylvio had fewer than 5 recorded uses in 2025, so these figures use 2015, the last year it was published.
- Among all babies, 2015
- 1 in 617,000
- 6 of 3,701,574 births
- Among boys only
- 1 in 319,000
- <0.01% of boys
- Rank, 2015
- Unranked
- Fewer than 5 uses
- Coin-flip room size
- 427,624 kids
- Even odds of a second one
Where Sylvio sits on the popularity scale
Chance at least one other child shares the name
If the other children were drawn at random from the 2015 national name distribution. Real classrooms cluster by region and community, so treat these as a floor, not a ceiling.
Put another way: gather 427,624 children born in 2015 and it's an even bet that one of them is another Sylvio. In a class of 30 the chance is Under 1%.
When Sylvios were born
Half of everyone ever recorded as Sylvio was born before 1924 — so the typical Sylvio is around 101 today.
- Biggest decade
- 1920s
- 41.3% of all use
- Born in the last 25 years
- 1.3%
- Mostly a past generation
- Recorded since 1950
- 24
- People you could plausibly meet
1920s — 41.3% of all recorded uses (191).
Is Sylvio 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 1921 (29)
- Years since peak
- 104
- Years
- Year-to-year steadiness
- Volatile
- 47.9% average annual change
Spellings of Sylvio
Sylvio is not the most common spelling — Sylvan is, with 34.6% against Sylvio's 4.3%.
Grouped by closeness of spelling (up to two letter changes), same sex, with a floor on all-time use. It catches Sophia/Sofia and Aiden/Ayden, and misses spellings that sound alike but look different, like Sean and Shawn.
Where Sylvio is used
Across 1910–2025, Sylvio was most concentrated in Maine — about 1 in 33,333 boys, against 1 in 326,350 across all states with data. It was least common in Pennsylvania (1 in —).
Most concentrated
- 1Maine1 in 33,333
- 2New Hampshire1 in 50,000
- 3Massachusetts1 in 100,000
- 4New York1 in —
- 5Pennsylvania1 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. Sylvio has too little recent state data to map, so this covers all years from 1910.
Sylvio around the world
Where Sylvio 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.
- France1900–2025#4,582in 2025
Popularity data from Institut national de la statistique et des études économiques. INSEE data under Licence Ouverte / Etalab 2.0.
Sylvio by the numbers
The raw record for each sex the name is used for.
Names similar to Sylvio
Matched on shared beginnings and endings, similar length, and comparable popularity.
Sibling names for Sylvio
Names from the same era and popularity tier — the two things that make a sibling set feel deliberate — skipping lookalike spellings and shared initials.