Total births
98
Boys' name · since 1915
Delio
Since 1915, U.S. Social Security records show 98 babies named Delio, peaking in 1973. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.
- 98
- total births
- 1915–2010
- years on record
- 1970s
- peak decade
- 20%
- born in that decade
Delio is not among the current top-ranked boys names; 98 have been recorded since 1915.
Delio has 98 recorded births among boys since 1915, per the U.S. Social Security Administration, though it falls outside today's most-used boys names, busiest in the 1970s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1915 to 2010.
- 98 total births
- 1915–2010 years on record
- 1970s peak decade
- 20% born in that decade
Data updated Jul 2026
The verdict
98 boys have been named Delio since 1915, peaking in the 1970s, last recorded in 2010.
- 98
- total births
- 1915–2010
- years on record
- 1970s
- peak decade
- 20%
- born in that decade
1970s
Peak decade
20% of everyone ever named Delio was born in this single decade.
1973
Single peak year
9 babies were named Delio in 1973 - its busiest year on record.
Delio's usage pattern, beyond the headline number
Divide Delio's SSA record in two at 1985 and the more recent half accounts for 50% of all births, the earlier half the remaining 50%, a genuinely balanced usage pattern. Its calmest year was 1931, with only 5 births recorded -- set against the 1973 peak of 9, that's the full swing in one name's fortunes.
Delio at a glance
Last recorded 2010Peak year
1973
Current rank
Unranked
Active since
1915
Delio popularity over time
Annual U.S. births registered with the Social Security Administration · 1915–2010
- Peak year (1973)
- 9
- Annual births at peak, across 96 years of records
Delio by decade
Total births in each ten-year window, peak vs trough at a glance
1970s was Delio's strongest decade.
20 babies received the name during that ten-year window, about 20% of all-time use.
Delio births by decade
Total births in each ten-year window
- 1910s 6
1910s
6 births
- 1920s 6
1920s
6 births
- 1930s 5
1930s
5 births
- 1950s 5
1950s
5 births
- 1960s 7
1960s
7 births
- 1970s
1970s
20 births
- 1980s
1980s
13 births
- 1990s
1990s
13 births
- 2000s
2000s
18 births
- 2010s 5
2010s
5 births
What this shows Peak: 1970s at 20 births (20% of all-time use).
Frequently Asked Questions
How popular is the name Delio? ▼
Delio has been given to 98 babies in the U.S. since 1915, according to SSA data. Its last appearance in the data was 2010. 9 babies were born in 1973, its single highest year.
When was Delio most popular? ▼
Delio was most popular in the 1970s decade with 20 total births. The single peak year was 1973.
How long has the name Delio been used? ▼
Delio has been recorded in Social Security data since 1915, spanning 96 years of data through 2010.
What names are similar to Delio? ▼
Names with a similar sound or spelling include Delbert, Delmar, Delmer, Delano, and 4 more. These share a common prefix and are also used for boys.
What to do with Delio's data
- Delio's decade-level peak was the 1970s (20 total births); usage has since declined to 5 in the 2010s -- if you're weighing a "classic revival" angle, the trend line argues against it.
- Weighing it against an alternative? Put two names side by side. Compare names
Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.
Keep exploring Delio
Nearby Names Like Delio
Names with a similar sound, spelling, or feel to Delio
Delbert Boy
#6200 46,930 births
Delmar Boy
#4708 14,242 births
Delmer Boy
7,654 births
Delano Boy
#3617 5,531 births
Delvin Boy
#4214 5,328 births
Compare Delio side by side: Delio vs Delbert Delio vs Delmar Delio vs Delmer
Related Names
Names with a similar number of total births
Data Sources
Data as of July 2026. Source: U.S. Social Security Administration (SSA).
According to the Social Security Administration, this profile draws directly from the agency's public-use baby-name files (updated June 2026). See our methodology for the full extraction, aggregation, and privacy-suppression rules.
Primary: Source: U.S. Social Security Administration, Baby Names from Social Security Card Applications, National Data, 1915–2010 (ssa.gov/oact/babynames).
State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).
Cite this page
NameAlmanac Editorial. "Delio: Baby Name Since 1915 - 98 Births, Peak 1973." NameAlmanac. Accessed via https://namealmanac.com/name/delio. Licensed CC BY-SA 4.0.
Name Almanac is rendered directly from the Social Security Administration's public baby-name files, no number is typed in by an editor. This profile for Delio draws directly on SSA national and state-level files, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of July 2026.