Thaddeus

Spellings marked ● are how people bearing the name write it in our records, and ○ marks a model's transliteration; click a spelling to open its page.

Attested across 10 languages in the etymology graph.

Names that people choosing a name often weigh against Thaddeus, most often first. They share a style rather than an origin.

• Phineas
• Percival
• Matthias
• Ignatius
• Darius

From the names suggested together in public name-advice forums, in English. A list of what people consider, not a measure of how common any name is.

Thaddeus is also recorded as 2 other names, grouped separately because the records behind them do not connect to the one described above.

• a separate name2 spellings in the group

  Also written Thaddéus

• Russian given name12 spellings in the group

  Most recorded in United States, Russia, Ukraine, Nigeria

  Languages: Russian, Ukrainian

  Also written Тадеус, Tadeus, Tadeuš, Tadeuş, Tadêus

56 further groups record this spelling and are not listed here.

Grouping is the name graph's, not a register's: two spellings join a group when the evidence links them, so a group is a claim about the records rather than about the people.

Thaddeus is also recorded in 3 other lexicons, as a different name or as an ordinary word. These are senses of the spelling, not of the name above.

• In English, A male given name from Ancient Greek, of common usage, variant of Thaddaeus.

  as a word·kaikki.org Wiktionary extract (IPA + transliterations)

• In German, biblical name; from Aramaic 'the brave'

  as a name·Deutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

• In German, HI. (Judas) Th,; dialdäisch "der Be- herzte". T(h)add|ey, ay, Dadday

  as a name·Deutsche Namenkunde: Unsere Familiennamen nach ihrer Entstehung und Bedeutung

Ordered by how much of this spelling's record each language holds, so a sense from a language the name is barely used in sits last rather than first.

• Thaddeus Stevensb. 1792USAmerican statesman (1792–1868)
• Thaddeus S. C. Loweb. 1832USAmerican chemist and inventor (1832–1913)
• Thaddeus Youngb. 1988USAmerican basketball player (born 1988)

The ten people covered by the most Wikipedia language editions — a proxy for cross-cultural notability, which favours historical and Western figures over equally prominent contemporary ones — shown by birth year. Source: Wikidata (CC0).

A formal English salutation is built on the surname, so it needs a full name — on its own, a first name only supports the informal form.

47 registers and reference works attest this spelling, across 27 countries.

Register rows as of the 2026-10-09 data build.

What does the name Thaddeus mean, and where does it come from?

Latin form of a New Testament name, the byname used to refer to one of Christ's lesser-known apostles, whose given name was Lebbaeus (Matthew 10:3). Recorded by A concise dictionary of first names.

Is Thaddeus a male or female name?

Thaddeus is a male name. National registers that list it by sex list it as male: United States (Census Bureau, 2020) and Netherlands (Meertens NVB).

What are other forms of the name Thaddeus?

In the etymology graph, Tadeusz, Tadeu and Tadeo are forms of the same name in other languages; Thad and Tad are recorded short or pet forms.

Which countries have the most people named Thaddeus?

In the United States, the national register counted about 16 thousand people named Thaddeus, more than in any other country we hold, where it is most often spelled thaddeus. After it come Nigeria, United Kingdom, Philippines and Canada; the country table on this page ranks them.

How common is the name Thaddeus?

In the United States, the national register counted 15,514 people named Thaddeus in 2020, about 1 in 21 thousand residents.

How common is Thaddeus compared with other names?

In Ireland, Thaddeus is the 798th most common given name of 14,976 given names recorded there.