"heart, courageous heart"
Origin: Aramaic
Language: English
Thaddeus
Pronunciation: [ th-AD-ee-uhs ]
Does Thaddeus flow with your last name?
An apostle's name with the heart of a hero
American
Polish
English
Biblical
Catholic
Literary
Vintage
Strong
Unusual
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Meaning & Origin
"gift of God"
Origin: Aramaic (alternative etymology)
Language: English
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The Story of Thaddeus
Thaddeus is an ancient name of Aramaic origin, meaning 'heart' or 'courageous heart.' It is the name of one of the twelve apostles of Jesus (also known as Lebbaeus), and appears in both Matthew and Mark's Gospels. In Poland, it took the form Tadeusz, most famously borne by national hero Tadeusz Kosciuszko, who fought for both Polish independence and the American Revolutionary War. While traditionally male, Thaddeus as a girl's name reflects the modern trend of using grand, classical names for daughters.
Thaddeus has historically been a name for boys, particularly popular in Catholic families and in Poland (as Tadeusz). Its use for girls is a recent and striking choice, driven by the trend of giving daughters strong, unexpected names with classical weight.
As a biblical apostle's name with particular reverence in Catholic and Polish culture, Thaddeus carries centuries of spiritual and cultural heritage. The Polish national hero Tadeusz Kosciuszko made the name synonymous with courage and sacrifice for freedom.
Historical Record
Thaddeus first appeared in US Social Security records in 1970.
Over 26 babies have been named Thaddeus in the United States since SSA records began.
Today, Thaddeus is a hidden gem — rare but distinctive , currently ranked #66,634 for girl names in the US .
Fun Facts
- Tadeusz Kosciuszko fought in both the American Revolutionary War and for Polish independence, making his name synonymous with freedom on two continents.
- Thaddeus appears in the Bible as one of the twelve apostles, though he is one of the lesser-known, adding to its rare and distinguished quality.
Thaddeus in Other Languages
Greek
Θαδδαῖος
Polish
Tadeusz
Aramaic
Thaddai
Italian
Taddeo
Spanish
Tadeo
Popularity Over Time
#66,634
Current Rank
Rare
Trend
Hidden Gem
Based on SSA data 1880–present
Year-by-year popularity data will be available soon.
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Compare Thaddeus with:
Quick Facts
- Gender
- Girl
- Syllables
- 3
- Popularity Rank
- #66,634
- Total SSA Count
- 5
- Cultural Origins
- American Polish English Biblical Catholic
- Pronunciation
- Moderate
- Formality
- Formal
- Cross-Cultural Ease
- Moderate
Common Nicknames
Thad
Thady
Addie
Middle Name Ideas
Suggested pairings based on syllable flow and style
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, English heritage match, balanced 3-2 syllable flow
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
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Timeless choice, smooth 3-1 syllable flow
-
Timeless choice, smooth 3-1 syllable flow
-
Classic pairing, English heritage match, balanced 3-2 syllable flow
Middle Names
Middle Names for Thaddeus
5 name pairings with syllable flow tips
Sibling Names
Sibling Match
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Also a Boy Name
Thaddeus is also used as a boy name, ranked #850.
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Frequently Asked Questions About Thaddeus
What does the name Thaddeus mean?
"heart, courageous heart" (from Aramaic). "gift of God" (from Aramaic (alternative etymology)). Thaddeus is an ancient name of Aramaic origin, meaning 'heart' or 'courageous heart.' It is the name of one of the twelve apostles of Jesus (also known as Lebbaeus), and appears in both Matthew and Mark's Gospels. In Poland, it took the form Tadeusz, most famously borne by national hero Tadeusz Kosciuszko, who fought for both Polish independence and the American Revolutionary War. While traditionally male, Thaddeus as a girl's name reflects the modern trend of using grand, classical names for daughters.
What is the origin of the name Thaddeus?
Thaddeus has Aramaic, Aramaic (alternative etymology), American, Polish, English, Biblical, and Catholic origins. In Aramaic, it means "heart, courageous heart". In Aramaic (alternative etymology), it means "gift of God".
Is Thaddeus a boy or girl name?
Thaddeus is used as both a girl and boy name. As a girl name, it is ranked #66634. As a boy name, it is ranked #850. Thaddeus is more commonly used as a boy name.
How do you pronounce Thaddeus?
Thaddeus is pronounced th-AD-ee-uhs.
How popular is the name Thaddeus?
Thaddeus is currently ranked #66634 in popularity for girl names in the United States.
What are common nicknames for Thaddeus?
Common nicknames for Thaddeus include Thad, Thady, and Addie.
What are good middle names for Thaddeus?
Popular middle name pairings include Thaddeus Grace, Thaddeus Rose, Thaddeus Marie, Thaddeus James, and Thaddeus Lee.
What are good sibling names for Thaddeus?
Names that pair well with Thaddeus as siblings include Barnabas, Cornelius, Josephine, and Agatha.
How many syllables does Thaddeus have?
Thaddeus has 3 syllables, making it distinctive and rhythmic.
Is Thaddeus a common or rare name?
Thaddeus is an uncommon name, ranked #66634 in the US. Its rarity gives it a distinctive, memorable quality.
About the Name Thaddeus
Thaddeus is a girl name with American, Polish, English, Biblical, and Catholic origins . The name means "heart, courageous heart" in Aramaic .
Is Thaddeus a boy or girl name? Thaddeus is used as both a girl and boy name. As a girl name, it ranks #66,634 in popularity. As a boy name, it ranks #850. Thaddeus is more commonly used as a boy name.
Thaddeus is currently ranked #66,634 in popularity for girl names in the United States.
The name Thaddeus has 3 syllables and is pronounced th-AD-ee-uhs, making it distinctive and memorable.
Common nicknames for Thaddeus include Thad, Thady, and Addie. These shorter forms provide casual alternatives while keeping the elegance of the full name.
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Sources
- U.S. Social Security Administration — National Baby Names Data (popularity rankings and historical trends)
- Behind the Name (etymology and meaning research)
- NamingEverything editorial research and analysis