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What does Thaddius mean?

Thaddius Pronunciation of Thaddius [thad-dius] as a name for boys is an Aramaic name, and the name Thaddius means "heart". Thaddius is a version of Thaddeus (Aramaic): also possibly derives from Theodorus.


Thaddius has 5 variants: Thaddaeus, Thaddaios, Thaddaos, Thaddaus and Thadeus.

1 more relation via Thaddeus: Taddeusz.

Creative forms:


Middle name pairings:
Thaddius Beck (T.B.), ..

How popular is Thaddius?

Thaddius is an uncommon first name for men. Thaddius is an equivalently rare surname too for all people. (2000 U.S. Demographics)

Which version is better?

with its source form and related boy names. Prominent varying forms of Thaddius (not ranked) are Thaddeus (#703 from recent data) and Thadeus. Other forms, like Thaddaos, are uncommon. Adoption of these relations of Thaddius reached its most widespread a century ago (average #1123) and is somewhat less today. (Top 2000 Names, 2015)

Top 2000 baby names ranking of Thaddeus, Thadeus in U.S.

Top 100 baby names ranking of Thaddius and related baby names outside U.S.

Similar Names

Recommended names are Agathius, Amadeus, Anastius, Andrius, Arcadius, Arkadius, Blasius, Caddis, Caddiss, Cadmus, Caius, Cassius, Chaddie, Claudius, Dacius, Darius, Darrius, Egidius, Esavius (see Eusebius), Fabius, Flavius, Gaddis, Gaius, Jarius, Kadmus, Marius, Shamus, Stasius, Tacitus, Tadd, Taddeo, Tadi, Tadio, Tadzio, Tallis, Tandie, Tannis, Taurus, Tavis, Teddie, Terrius, Thad, Thady, Thaine, Thanasis, Thandey, Thandie, Thandiwe, Thandy, Thaniel, Thedric, Thedrick, Theodorus, Theodosius, Theseus, Thijs, Thonus, Travis and Traviss. These names tend to be more frequently used than Thaddius.

See names
in meaning and etymology.