Tadei

♂ Boy

How to Pronounce Tadei

Pronounced TAH-day /ˈtɑ.deɪ/Medium

Meaning: A Slovene/Slavic form of Thaddeus — of uncertain origin, variously read 'courageous heart' and 'praise' (Aramaic)Low

In 30 seconds: Courageous heart; praise: Tadei is a Slavic form of Thaddeus. Crisp, classic, and warm (said 'TAH-day').

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Tadei

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Origin LowAramaic, Slavic

MeaningA Slovene/Slavic form of Thaddeus — of uncertain origin, variously read 'courageous heart' and 'praise' (Aramaic)

U.S. rank (2025)#10546 ↘ Falling

2025 U.S. births7 boys (0.00% of U.S. boys)

Peak year2024

Total births (all-time)≈ 16

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Popularity in the U.S. · SSA data

U.S. births per year (Social Security Administration, 1880–present). Pink marker = peak year.

SSA data updated May 2026. How we source & verify this data.

History & Origin

Tadei is a Slovene/Slavic form of Thaddeus — of uncertain origin, variously read 'courageous heart' and 'praise' (Aramaic; one of the Twelve Apostles). A crisp, classic name (said 'TAH-day'; nickname Tadej).

In the U.S. it appears in Slavic families. Rare, courageous-heart at the root, and classic.

Did you know? Thaddeus is variously read 'courageous heart' and 'praise' (Aramaic; an apostle) — Tadei is a Slovene/Slavic form, crisp and classic (said 'TAH-day').

Overall data confidence 42%

References — Thaddeus — Slavic form

Variations

TadejTadeoTaddeo

Nicknames

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Famous Bearers

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If you like Tadei…

Tadeo— the Spanish form

Tommie— a fellow Aramaic choice

Toma— a fellow Aramaic choice

Tavish— shares Tadei's Aramaic roots

Tommy— shares Tadei's Aramaic roots

Explore names like Tadei

By themearamaic slovene

By meaningBrave / Courage

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Frequently Asked

What does the name Tadei mean?

Tadei is a Slavic form of Thaddeus — variously 'courageous heart' and 'praise'.

How do you pronounce Tadei?

It's said TAH-day /ˈtɑ.deɪ/ — two syllables, stress on the first.

Is Tadei a boy or girl name?

Tadei is a boy's name.

How popular is Tadei?

Tadei is a rare name in the U.S.