Boys' name · since 1955

Fidensio

Since 1955, U.S. Social Security records show 6 babies named Fidensio, peaking in 1955. See the year-by-year trend, decade totals, and state rankings below, sourced from federal birth data.

#37,567 of 45,481
all-time among boys
6
born since 1955
1950s
peak decade

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

Fidensio has 6 recorded births among boys since 1955, per the U.S. Social Security Administration, though it falls outside today's most-used boys names, busiest in the 1950s -- see the year-by-year trends, decade totals, and state-level distribution below, all drawn directly from SSA birth-registration files spanning 1955 to 1955.

  • #37,567 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, Fidensio ranks #37,567 of 45,481 boys' names by all-time recorded births (highest first). 6 born since 1955, peaking in the 1950s.

#37,567 of 45,481
all-time among boys
6
born since 1955
1950s
peak decade
Rare archive record
All-time archive position

Fidensio'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.

Fidensio 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

Fidensio by decade

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

1950s was Fidensio's strongest decade.

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

Fidensio 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

Fidensio by state

Where Fidensio concentrates geographically, total births since 1955

Regionally concentrated
Top 1 states by recorded births for the name Fidensio
Rank State Visual share Births Share of total
#1 Texas
6 100.0%
Texas share of Fidensio's total US births 100.0%

6 of 6 births nationwide.

Frequently Asked Questions

How popular is the name Fidensio?
Since 1955, Social Security records show 6 babies named Fidensio. Across the full SSA archive it ranks #37,567 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 Fidensio sit in the SSA name archive?
According to the U.S. Social Security Administration, Fidensio ranks #37,567 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 Fidensio most popular?
Fidensio was most popular in the 1950s decade with 6 total births. The single peak year was 1955.
Where is Fidensio most popular?
The top states for the name Fidensio are Texas (6 births).
How long has the name Fidensio been used?
The SSA has tracked Fidensio since 1955 -- 1 year through the most recent 1955 data.
What names are similar to Fidensio?
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 Fidensio's data

  • Texas records the most Fidensios (6 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 Fidensio

Nearby Names Like Fidensio

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

Names with a similar number of total births

Nationwide names with similar peak year or record span

Two nationwide peer axes for Fidensio: 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 Fidensio 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.