Tadeo is a boy name with a modern feel, drawn from real birth records. Below you'll find what Tadeo means and where it comes from, plus how many babies have been named Tadeo across the United States, UK, Ireland and New Zealand, how popular Tadeo has been over the decades, and the year it peaked.
Tadeo is a boy name of Aramaic origin meaning “heart, courageous”. A Spanish form of Thaddeus.
| Country | Births on record |
|---|---|
| United States since 1880 | 5,843 births |
| England & Wales since 1996 | 10 births |
Counts come from official national birth-registration statistics: U.S. Social Security Administration, England & Wales (Office for National Statistics), Scotland (National Records of Scotland), Northern Ireland (NISRA), Ireland (Central Statistics Office) and New Zealand (Dept. of Internal Affairs). Coverage spans differ, so totals aren't directly comparable across countries.
Babies named Tadeo per year, United States (1968 to 2025). United States peaked in 2024 (782/yr) · England & Wales peaked in 2025 (4/yr).
Tadeo has been a fairly common baby name in the United States. It was most common in 2024, when it ranked #827 nationally (given to 782 babies that year).
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