Rising since 2017, #4,050 for boys today.
Popularity of Thadeo since 2014
Babies named Thadeo per year in U.S. Social Security records.
Data table (by decade)
| Decade | Boys |
|---|---|
| 2010s | 30 |
| 2020s | 96 |
Meaning & origin
Thadeo is a rare but steadily gaining name that combines a classic biblical root with a melodic Spanish and Italian ending. First recorded in U.S. data in 2014, it climbed to a peak rank of 4050 in 2025, with a 1-in-65,695 incidence rate. The name has been rising since 2017, reflecting a growing interest in distinctive apostle names like Thaddeus and Jude. Its top states are Texas and California, aligning with its popularity in Hispanic communities. Unlike some revival names, Thadeo's trajectory is still building, suggesting it remains a fresh choice for parents seeking an uncommon yet traditional option.
Thadeo is a Spanish and Italian variant of Thaddeus, derived from the Aramaic name Thaddai, meaning 'heart' or 'courageous heart.' In Greek tradition, it was associated with the name Theodōros ('gift of God') via folk etymology. Thaddeus appears in the New Testament as one of the twelve apostles, also known as Jude or Lebbaeus.
Where Thadeo is most popular
Births per 100,000 boys by state, 2025. The lightest shade means too few recorded births.
Nicknames & variants
Nicknames: Thad, Theo
Sibling names for Thadeo
Names that share Thadeo's style, for a brother or sister.
