What does Thaddius mean and where does it come from?
Thaddius is a male name of Greek origin, derived from the Hebrew name 'Taddai' (תַּדְדַי). It means 'heart' or 'courageous'. This name is often associated with Saint Thaddeus, one of the twelve apostles in Christian tradition. Notable bearers include Saint Thaddeus of Edessa, who is recognized by bo
Cultural significance
Thaddius has been a cherished name across cultures, particularly in Greece-speaking communities, where it reflects values of heart.
Peak popularity
Reached #2287 in 1972 — currently #13965 in the US.
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Related Reading
Greece-origin baby names with timeless appeal
Browse names →What middle names flow best with Thaddius?
Thaddius works best with short, strong middle names — one or two syllables keep the full name from becoming a mouthful
Thaddius Grace
Most popular combo · classic
Thaddius Rose
Floral · soft ending
Thaddius Mae
Sweet · timeless
Thaddius Claire
French influence · crisp
Thaddius Jane
Literary · strong
Thaddius Skye
Modern · airy feel
How popular is Thaddius right now?
Falling — down 1989 spots — currently #13965 in the US out of 135.5k tracked names
| Year | US Rank | Births | vs Prior Year |
|---|
| 2023 | #13965 | 5 | ▼ down 1989 · -17% births |
| 2021 | #11976 | 6 | ▼ down 2414 · -14% births |
| 2020 | #9562 | 7 | ▼ down 1927 · -30% births |
| 2010 | #7635 | 10 | ▲ up 1590 · +43% births |
| 2005 | #9225 | 7 | ▼ down 901 |
| 2000 | #8324 | 7 | ▼ down 2740 · -30% births |
| 1995 | #5584 | 10 | ▼ down 1755 · -33% births |
| 1990 | #3829 | 15 | ▼ down 716 |
| 1985 | #3113 | 15 | ▲ up 1973 · +114% births |
| 1980 | #5086 | 7 | ▼ down 1027 · -12% births |
| 1975 | #4059 | 8 | ▼ down 1594 · -47% births |
| 1970 | #2465 | 15 | ▲ up 661 · +88% births |
| 1955 | #3126 | 8 | — |
The story of Thaddius
Thaddius entered American naming records in 1916 and has been in use for over 108 years. With 582 total births recorded, Thaddius remains relatively uncommon. Once ranked #3126 in 1955, the name has become less common in recent years, sitting at #13965 in 2023.
Names that peaked alongside Thaddius in 1972:
Thaddius by decade
Thaddius peaked in the 1970s. See all 1970s names →
| Decade | Births | |
|---|
| 1910s | 12 | |
| 1920s | 5 | |
| 1930s | 5 | |
| 1940s | 12 | |
| 1950s | 23 | |
| 1960s | 35 | |
| 1970s | 112 | |
| 1980s ★ | 116 | |
| 1990s | 105 | |
| 2000s | 92 | |
| 2010s | 58 | |
| 2020s | 7 | |
💎Thaddius has only 582 total recorded births since 1916 — rarer than 99% of names in our database.
What are good nicknames for Thaddius?
What names sound and feel like Thaddius?
Based on sound, origin, and style — parents who love Thaddius also consider these
Common questions about the name Thaddius
What does the name Thaddius mean?
Thaddius means "heart" — a name rooted in Greece tradition that carries both historical depth and timeless appeal. The meaning reflects values that have made this name endure across generations.
How popular is the name Thaddius?
Thaddius is currently a distinctive and less common name as a boy name in the US and is becoming rarer and more distinctive, making it a unique choice that stands out.
What is the cultural origin of Thaddius?
Thaddius originates from Greece tradition. Greece names tend to carry strong cultural heritage and have spread across the world through migration, literature, and religion over centuries.
How do you pronounce the name Thaddius?
Thaddius is a four-syllable name pronounced TH AE1 D D AY1 AH1 S. The pronunciation is straightforward for English speakers, and the name reads clearly on paper — an important practical consideration for parents.
What sibling names go well with Thaddius?
Thaddius pairs beautifully with sibling names that share a similar Greece heritage or complement its melodic and flowing sound. Names with a similar vibe create a cohesive sibling set without matching too closely.