Marcio
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Meaning
the Spanish form of Marcius
How popular is Marcio around the world?
In the United States, 37 babies were named Marcio between 2020 and 2025. In Montevideo, 2 boys named Marcio were born in 2011, spelling variants counted together.
Marcio is on the official records of the United States, Montevideo, Spain and Argentina.
United States
1 in 590,000
In the United States, 37 babies were named Marcio between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Marcio 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
Montevideo City
1 in 12,0002011
In Montevideo, 2 boys named Marcio were born in 2011, spelling variants counted together.
share of that year’s births on record
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
Spain
1 in 160,000
In Spain, 287 residents are named Marcio, ranked 3,484th among men, with a mean age of 44.7 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
1 in 330,000
In Argentina, 2 newborns were given the name Marcio in 2024.
share of that year’s name registrations
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
Austria
last on record 2003
Marcio is not on the 2025 record for Austria, which publishes every first name down to a single birth, so the name was not given there that year.
The count never rose above 1 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)
Chile
last on record 2020
Marcio is not on the 2021 record for Chile, where nametree keeps the spellings that reached 5 registrations in some year.
The count never rose above 8 in a year, too few to chart.
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
England and Wales
last on record 2018
Marcio is not on the 2025 record for England and Wales, where spellings under 3 in a year are withheld at source.
The count never rose above 4 in a year, too few to chart.
Birth registrations in England and Wales (not the whole UK); exact spellings are counted separately, and any spelling under 3 in a year is withheld at source. Source: Office for National Statistics, baby names in England and Wales
Not on the record in Mexico City, Puerto Rico, 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 the South Australia record for 1944 to 2017: that registry withholds nothing, so this spelling was not given there in those years. 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 Marcio
Most people given the name Marcio in the United States were born between 1980 and 2019. The Marcio you meet today is most often in his 20s or 30s.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
The Marcio deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Marcio 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 Marcio fits with your family’s names and surname.
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