MallowbyNames

Tadeo

tah-DAY-oh · Gift of God

2025 rank (boys)
#427
Babies named in 2025
753
Peak popularity
2024
2025 frequency
1 in 2,268 boys
Usually for
Boys
Trend
Rising since 1995

Rising since 1995, #427 for boys today.

Popularity of Tadeo since 1968

Babies named Tadeo per year in U.S. Social Security records.

261521782198020002020Most births 2024Boys
Data table (by decade)
DecadeBoys
1960s5
1970s0
1980s19
1990s53
2000s348
2010s1,847
2020s3,571

Meaning & origin

Tadeo has been on a steady upward trajectory in the United States since 1995, reaching its peak rank of 427 in 2025. That year, approximately 1 in 2,268 newborn boys were named Tadeo. The name first appeared in U.S. records in 1968, reflecting its growing appeal, particularly in states with large Hispanic populations such as Arizona, California, and New Mexico. Its popularity within these communities highlights how Spanish-language names have become more common nationwide. Tadeo's meaning as a 'gift of God' and its apostolic heritage give it a traditional yet distinctive feel, appealing to families seeking a name with religious significance that remains uncommon in the broader population.

Tadeo is the Spanish and Italian form of Thaddeus, which derives from the Aramaic name 'Thaddai,' meaning 'heart' or 'courageous heart.' It is often interpreted as 'gift of God' by association with the similar Hebrew name Mattathias. The name appears in the New Testament as one of the apostles, also known as Jude. Tadeo has been used in Spanish-speaking countries for centuries and gained popularity in the United States among Hispanic communities.

Where Tadeo is most popular

Births per 100,000 boys by state. Press play or drag the slider to watch it move across the decades. The lightest shade means too few recorded births.

2020s
Fewermore per 100k boystoo few births

Nicknames & variants

Nicknames: Tad, Tato, Tade

Variants: Thaddeus, Tadeusz, Taddeo, Tadgh

Sibling names for Tadeo

Names that share Tadeo's style, for a brother or sister.

A parent animal hugging its little one, the personalized name page

T is for Tadeo, our favorite little boy.

T is for Tadeo…”

In a Mallowby alphabet book, Tadeo's letter becomes Tadeo's page: hand-illustrated, printed hardcover or paperback, made just for them.

Make Tadeo's book

Books for siblings or grandkids? The second book is 15% off.

Questions parents ask

What does the name Tadeo mean?
Tadeo means 'gift of God' and is the Spanish and Italian form of Thaddeus.
How popular is the name Tadeo?
In 2025, Tadeo ranked 427th in the United States, with approximately 1 in 2,268 boys given the name. It has been rising in popularity since 1995.
Is Tadeo a boy's name or a girl's name?
Tadeo is traditionally a masculine name, used almost exclusively for boys.