Thiago
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Meaning
supplanter (Portuguese form of James/Diego)
The story
Santiago is really two words worn into one: Sant Iago, saint James. Over centuries the Iago inside it broke loose and became Tiago in Portuguese and Spanish, and Brazilian usage added the h that American families now mostly choose. So Thiago carries James, one of the oldest continuously used names in the West, without sounding remotely like James. The traditional gloss for the underlying Hebrew Yaakov is supplanter, though the sense is disputed enough to be worth hedging. In US records the name is genuinely new: fewer than forty babies in the 1980s, then more than ten thousand in the 2010s, and over twenty four thousand so far this decade. Very few names in our data climb that steeply. It belongs to both our Spanish and Portuguese naming communities, which is unusual, and it needs no translation in either.
How popular is Thiago around the world?
In the United States, 24,167 babies were named Thiago between 2020 and 2025. In Montevideo, 736 boys named Thiago were born in 2011, spelling variants counted together.
Thiago is on the official records of the United States, Montevideo, Puerto Rico, Argentina, Chile, Mexico City, Brazil, Spain, France, Canada, England and Wales, Austria, Ireland, South Australia and Poland.
Thiago crosses languages: it is in the latest top 300 of an English-speaking birth record, of a Spanish-speaking one and of Brazil’s 2022 census, which counts people of every age. The full lists: English and Spanish · English and Portuguese · Spanish and Portuguese
United States
1 in 900
In the United States, 24,167 babies were named Thiago between 2020 and 2025.
Shape drawn from US Social Security baby-name records. Thiago peaked in the 2020s. Thiago went to 1,032 US babies in 2015 and 5,840 in 2025, 5.7 times as many.
Births with a Social Security record. Source: U.S. Social Security Administration
Montevideo City
1 in 332011
In Montevideo, 736 boys named Thiago 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
Puerto Rico
1 in 76
In Puerto Rico, 237 babies were named Thiago in 2025, and 2,086 have carried the name since 1998.
share of that year’s births on record
First given name only, from Social Security records of births in Puerto Rico; any name-sex-year under 5 births is withheld at source. Shares divide by the Puerto Rico Demographic Registry’s count of births on the island; the 2025 count is provisional. Source: U.S. Social Security Administration, territory name file (Puerto Rico)
Argentina
1 in 270
In Argentina, 2,470 newborns were given the name Thiago 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
Chile
1 in 290
In Chile, 614 boys were registered as Thiago in 2021, every accent spelling counted together.
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
Mexico City City
1 in 340
In Mexico City, there were 342 registrations of Thiago in 2022.
share of that year’s registrations in the city
Civil-registry acts in Mexico City by registration year. Counts are lower bounds (names under 6 in a month and borough are removed at source) and count name-instances, not people; compound names are split, so “Maria Jose” counts under each part. 2023 (18 registrations through 3 Mar) is excluded as partial. Source: Registro Civil of Mexico City, open data portal, registered given names 2000-2023
Brazil
1 in 450
At the 2022 census, 454,565 people in Brazil were named Thiago, the 52nd most common name, with a median age of 29.
Among people named Thiago living in Brazil at the 2022 census, more were born in the 1980s than in any other decade.
people alive at the 2022 census, by decade of birth
The census also counted 9,478 born between 2020 and August 2022, too recent a span to chart. People alive and resident in Brazil at the 2022 census, a living-population count, not births; names under 20 are withheld at source. Source: IBGE, Censo Demográfico 2022
Spain
#12 · 2024
In Spain, 16,335 residents are named Thiago, the 186th most common name among men, with a mean age of 6.6 years.
In Spain, Thiago was the 12th most common name among boys born in 2024.
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
France
1 in 2,500
In France, about 260 boys named Thiago were born in 2025, the 204th most common name among boys that year.
share of that year’s births on record
Births in France by year of birth, from INSEE’s fichier des prénoms (1900–2025; Mayotte from 2012); exact spellings count separately (Léo and Leo are different names), any spelling under 3 in a year and sex is withheld at source, every count is rounded to the nearest 5 at source, and nametree keeps the spellings that reached 20 in some year. Shares divide by INSEE’s count of births in France from 1957, and before that by the file’s own total for the year; INSEE says the file is not complete before 1946. Source: Insee, fichier des prénoms (last updated 2026-07-16)
Canada
1 in 3,500
In Canada, 104 boys named Thiago were born in 2024, the 317th most common name among boys that year.
share of that year’s name registrations
First given names from provincial and territorial vital statistics across Canada; any name-sex-year under 5 is excluded at source, and small Quebec counts carry a randomized adjustment made at source. Shares divide by Statistics Canada’s count of live births for the year; the 2024 count is preliminary. Source: Statistics Canada, first names at birth (table 17-10-0147-01)
England and Wales
1 in 4,600
In England and Wales, 128 boys named Thiago were born in 2025, the 331st most common name among boys that year.
share of that year’s name registrations
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
Austria
1 in 6,900
In Austria, 11 boys named Thiago were born in 2025, the 436th most common name among boys that year, spellings that differ only by special characters counted together.
share of that year’s births on record
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)
Ireland
1 in 11,000
In Ireland, 5 boys named Thiago were born in 2025, the 577th most common name among boys that year.
The count never rose above 9 in a year, too few to chart.
Exact registered spellings from Irish vital statistics; any name under 3 in a year is withheld at source, and accented spellings (fadas) are recorded reliably only from 2018. Source: Central Statistics Office (Ireland), Irish babies' names
South Australia
1 in 18,0002017
In South Australia, 1 boy was registered as Thiago in 2017.
The count never rose above 2 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
Poland
1 in 41,000
In Poland, 6 boys named Thiago were born in 2025, the 419th most common name among boys that year.
share of that year’s name registrations
First names given to children born in Poland by year of birth, 2000–2025, from the PESEL population register (Ministry of Digital Affairs); exact spellings count separately (Łukasz and Lukasz are different names), names given fewer than 5 times in a year were left off the list through 2012 and fewer than 2 times from 2013, and the register also counts children born abroad, so its yearly sums run above Poland’s live births. Shares divide by the register’s own published total for the year, never by births. Source: Ministry of Digital Affairs, PESEL register (dane.gov.pl)
Scotland
last on record 2022
Thiago is not on the 2024 record for Scotland, where spellings under 3 in total are suppressed at source.
The count never rose above 5 in a year, too few to chart.
Births registered in Scotland; different spellings count separately but accents are merged at source, and any spelling under 3 in total is suppressed. Source: National Records of Scotland, babies' first names
Not on the record in New Zealand: that registry withholds small counts, so rare uses may sit below its floor.
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 Thiago
Most people given the name Thiago in the United States are children or teenagers today. The name belongs to this generation.
Estimated from US Social Security birth registrations and typical lifespans; a rough guide, not a rule.
Keep exploring
Spanish baby names · Portuguese and Brazilian baby names · Climbers and fallers
The Thiago deep dive
Whether you’re naming a baby or exploring your own name’s history, this is a personal letter, not a list: where Thiago 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 Thiago fits with your family’s names and surname.
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