Fidelia
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Meaning
a feminine form of Fidel, from the Latin name Fidelis, "faithful", derived from fides, "faith"
How popular is Fidelia around the world?
In the United States, 16 babies were named Fidelia between 2020 and 2025. In Austria, 2 girls named Fidelia were born in 2025, ranked 1,305th among girls that year, spellings that differ only by special characters counted together.
Fidelia is on the official records of the United States, Austria and Spain.
United States
1 in 1.4M
In the United States, 16 babies were named Fidelia between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Fidelia has stayed rare in US records the whole time: no peak decade to name.
Births with a Social Security record. Source: U.S. Social Security Administration
Austria
1 in 38,000
In Austria, 2 girls named Fidelia were born in 2025, ranked 1,305th among girls that year, spellings that differ only by special characters counted together.
The count never rose above 3 in a year, too few to chart.
Live births in Austria by year of birth, 1984–2025, from Statistik Austria’s first-name statistics; spellings that differ only by special characters are counted together (umlauts stay apart), every name down to a single birth is published, and the count covers babies with Austrian citizenship only until 2009, every baby from 2010, and from 2015 also births abroad to mothers living in Austria. Shares divide by Statistik Austria’s count of live births from 2010, and before that by the file’s own total for the year. Source: Statistik Austria - data.statistik.gv.at (OGDEXT_VORNAMEN_1, updated 2026-07-09)
Spain
1 in 210,000
In Spain, 213 residents are named Fidelia, ranked 4,264th among women, with a mean age of 62.2 years.
Residents of Spain on 1 January 2025. Spain publishes how old a name’s living bearers are, not a birth series, so there is no year chart. Source: INE (Spain), Censo de Población anual, 1 January 2025
Argentina
last on record 2017
Fidelia is not on the 2024 record for Argentina, where small counts are withheld at source.
The count never rose above 2 in a year, too few to chart.
Given-name components of births in Argentina 2012–2024; national cells are lower bounds and no sex split is published. Source: RENAPER (Argentina), Dirección Nacional de Población, given names 2012-2024
Chile
last on record 2018
Fidelia is not on the 2021 record for Chile, where nametree keeps the spellings that reached 5 registrations in some year.
share of that year’s name registrations
First-name registrations with Chile’s civil registry by year of registration, 1920–2021, counted as spelling groups (Sofía, Sofia and Sofìa are one name, shown with its most-registered spelling); the registry withholds nothing, nametree keeps the groups that reached 5 registrations in some year, and shares divide by every registration of the year. Source: Servicio de Registro Civil e Identificación (Chile) via the guaguas package, first-name registrations 1920-2021
Montevideo City
last on record 2002
Fidelia is not on the 2011 record for Montevideo, whose registry withholds nothing, so the spelling was not given there that year.
The count never rose above 1 in a year, too few to chart.
Births in the department of Montevideo (not all of Uruguay) by first name and year of birth, 1940–2011, from the city’s civil registry, which writes names in capitals, almost always without accents; counted as spelling groups (accent and punctuation variants merged), nothing is withheld at source, and 2012 is excluded as a partial year. Source: Servicio de Registro Civil, Intendencia de Montevideo, Partidas de Registro Civil de Montevideo (Licencia de Datos Abiertos - Uruguay); 2012 dropped as partial
South Australia
last on record 1962
Fidelia is not on the 2017 record for South Australia, whose registry publishes every name given that year.
The count never rose above 1 in a year, too few to chart.
Births registered in South Australia (not all of Australia) by first name and year of registration, 1944–2017, from the state’s Births, Deaths and Marriages registry, which publishes every name down to a single birth in capitals; a spelling its export repeats inside a year is counted once, and from 2018 only a top 100 is published, so the series ends at 2017. Source: Consumer and Business Services (South Australia), popular baby names
Not on 10 other recordsWhy
- Not on the record in Mexico City, Puerto Rico, England and Wales, Canada, Ireland, New Zealand, Scotland and Poland: those registries withhold small counts, so rare uses may sit below their floors.
- Not on the France record: nametree keeps spellings that reached 20 births in some year, so rarer uses are not shown.
- Not on Norway’s list: Statistics Norway lists only first names carried by 200 or more living people, so rarer names are not shown.
When you meet Fidelia
People given the name Fidelia in the United States span the generations: the middle half were born anywhere from 1950 to 1999. Age is the one thing the name won't tell you.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Fidelia deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Fidelia truly comes from, how it traveled, and what a century of records reveals. If you have grown a tree on nametree, it also considers how Fidelia fits with your family’s names and surname.
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