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.

6
total births
1955–1955
years on record
1950s
peak decade
100%
born in that 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.

  • 6 total births
  • 1955–1955 years on record
  • 1950s peak decade
  • 100% born in that decade

Data updated Jul 2026

The verdict

6 boys have been named Fidelio since 1955, peaking in the 1950s, last recorded in 1955.

6
total births
1955–1955
years on record
1950s
peak decade
100%
born in that decade
1950s
Peak decade

100% of everyone ever named Fidelio was born in this single decade.

1955
Single peak year

6 babies were named Fidelio in 1955 - its busiest year on record.

Fidelio at a glance

Last recorded 1955

Total births

6

Since 1955

1 years of records

Peak year

1955

6 births that year

Strongest decade: 1950s

Current rank

Unranked

Outside the modern top-1,000

As of 1955

Active since

1955

Recorded for 1 years

Last year on file: 1955

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

Total births in each ten-year window, peak vs trough at a glance

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 July 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. The most recent recorded year was 1955. Its busiest year on record was 1955, with 6 births.
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
  • 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 Fidelio

Nearby Names Like Fidelio

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

Fidel Boy
#1924 11,321 births
Fidencio Boy
#6495 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

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, 1955–1955 (ssa.gov/oact/babynames).

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

Cite this page

NameAlmanac Editorial. "Fidelio: Baby Name Since 1955 - 6 Births, Peak 1955." NameAlmanac. Accessed via https://namealmanac.com/name/fidelio. 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 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 July 2026.