Thiago
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.
Popularity, 1890–2024
Shape drawn from US Social Security baby-name records. Thiago peaked in the 2020s.
Popularity in Brazil
454,565 people · the #52 first name in Brazil · about 1 in 447 · median age 29
Among people named Thiago living in Brazil at the 2022 census, more were born in the 1980s than in any other decade.
The census also counted 9,478 born between 2020 and August 2022, too recent a span to chart.
Source: IBGE, Censo Demográfico 2022
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.
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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