Boys' name · since 1955

Fidelio

Fidelio has 6 recorded births since 1955 in federal Social Security data, most heavily in 1955 -- full year-by-year trend, decade aggregates, and state rankings follow.

#37,566 of 45,481
all-time among boys
6
born since 1955
1950s
peak decade

Fidelio is not among the current top-ranked boys names; 6 have been recorded since 1955.

According to the U.S. Social Security Administration, Fidelio has been recorded 6 times among boys since 1955, though it is not among the currently most-used boys names, with its heaviest use in the 1950s. This profile covers year-by-year birth trends, decade totals, and state-level distribution, all derived directly from SSA birth-registration files spanning 1955 to 1955.

  • #37,566 of 45,481 all-time among boys
  • 6 born since 1955
  • 1950s peak decade

Data updated Aug 2026

The verdict

According to the U.S. Social Security Administration, Fidelio ranks #37,566 of 45,481 boys' names by all-time recorded births (highest first). 6 born since 1955, peaking in the 1950s.

#37,566 of 45,481
all-time among boys
6
born since 1955
1950s
peak decade
Rare archive record
All-time archive position

Fidelio's 6 recorded births place it above 14.31% of the 45,481 boys names in the full SSA archive.

1 jurisdictions
State-record footprint

The state file records this name in 1 jurisdictions, led by Texas.

Fidelio popularity over time

Annual U.S. births registered with the Social Security Administration · 1955–1955

Last recorded 1955
Peak year (1955)
6
Annual births at peak, across 1 years of records
6 1955 6

Fidelio by decade

1950s is the heaviest window (6 births, 100% of the file).

1950s was Fidelio's strongest decade.

6 babies received the name during that ten-year window, about 100% of all-time use.

Fidelio births by decade

Total births in each ten-year window

births

What this shows Peak: 1950s at 6 births (100% of all-time use).

Source U.S. Social Security Administration · Baby Names As of August 2026

Fidelio by state

Where Fidelio concentrates geographically, total births since 1955

Regionally concentrated
Top 1 states by recorded births for the name Fidelio
Rank State Visual share Births Share of total
#1 Texas
5 83.3%
Texas share of Fidelio's total US births 83.3%

5 of 6 births nationwide.

Frequently Asked Questions

How popular is the name Fidelio? ▼
Since 1955, Social Security records show 6 babies named Fidelio. Across the full SSA archive it ranks #37,566 of 45,481 boys' names by total births. The most recent recorded year was 1955. Its busiest year on record was 1955, with 6 births.
Where does Fidelio sit in the SSA name archive? ▼
According to the U.S. Social Security Administration, Fidelio ranks #37,566 of 45,481 boys' names by all-time recorded births (highest first). All-time ordinal matches browse popularity (total births DESC); the current ordinal uses the null SSA file. See /methodology#corpus-placement.
When was Fidelio most popular? ▼
Fidelio was most popular in the 1950s decade with 6 total births. The single peak year was 1955.
Where is Fidelio most popular? ▼
The top states for the name Fidelio are Texas (5 births).
How long has the name Fidelio been used? ▼
Records for Fidelio go back to 1955, giving 1 year of history through 1955.
What names are similar to Fidelio? ▼
Names with a similar sound or spelling include Fidel, Fidencio, Fidelis, Fidelmar, and 1 more. These share a common prefix and are also used for boys.

What to do with Fidelio's data

  • Texas records the most Fidelios (5 births) -- see the full state breakdown if geography matters to your decision. Texas names

Figures reflect SSA-reported births only; see the methodology above for the privacy-suppression floor.

Keep exploring Fidelio

Nearby Names Like Fidelio

Names with a similar sound, spelling, or feel to Fidelio

Fidel Boy
#1868 11,321 births
Fidencio Boy
#10755 2,232 births
Fidelis Boy
49 births
Fidelmar Boy
10 births
Fidensio Boy
6 births

Compare Fidelio side by side: Fidelio vs Fidel Fidelio vs Fidencio Fidelio vs Fidelis

Or pick any two names to compare →

Related Names

Names with a similar number of total births

Edw
6 births · Peak 1889
Lanham
6 births · Peak 1907
Warder
6 births · Peak 1912
Gaillard
6 births · Peak 1913
Rumsey
6 births · Peak 1913
Amilcare
6 births · Peak 1914
Merchant
6 births · Peak 1914
Orvo
6 births · Peak 1914

Nationwide names with similar peak year or record span

Two nationwide peer axes for Fidelio: closest SSA peak year, and closest first→latest record span. Distinct from the spelling and current-rank neighborhoods above.

Peak year is the single SSA year with the most births for that name; record span is first-to-latest year in the national files, not a recommendation or shared origin claim.

Data Sources

Data as of August 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, 1955–1955 (ssa.gov/oact/babynames).

State-level: Source: U.S. Social Security Administration, Baby Names, State-Level Files (namesbystate.zip).

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 Fidelio 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 August 2026.