# Thaddaeus (first name)

Source: https://namelineage.com/first-name/thaddaeus/  
Publisher: Name Lineage. US counts from the Social Security Administration; England and Wales counts from the Office for National Statistics; meaning and etymology from Wiktionary. Data updated 2026-11-11.

| Field | Value |
|---|---|
| Usually given to | boys |
| Origin | Greek |
| Meaning | not recorded |
| Pronunciation | /ˈθædiːəs/, 2 syllables |
| Nicknames | Tad, Thad |
| Variant spellings | Thaddæus, Thaddeus |
| US babies named this | 1,045 since 1880 |
| Boys / girls in the US | 1,045 / 0 (0% girls) |
| Babies in England and Wales | 3, 1996 to 2025 |

## Etymology

Borrowed from Latin Thaddaeus, from Ancient Greek Θαδδαῖος (Thaddaîos), from Aramaic תַדַּי (Ṯaday).

## Popularity

The last 15 years of each series. A year is missing when too few babies were given the name for the agency to publish it: five in the US, three in England and Wales.

### United States, boys

| Year | Babies | Rank |
|---|---|---|
| 2011 | 19 | 4,963 |
| 2012 | 22 | 4,520 |
| 2013 | 19 | 4,957 |
| 2014 | 26 | 3,997 |
| 2015 | 16 | 5,720 |
| 2016 | 20 | 4,922 |
| 2017 | 22 | 4,578 |
| 2018 | 24 | 4,340 |
| 2019 | 14 | 6,373 |
| 2020 | 21 | 4,682 |
| 2021 | 22 | 4,611 |
| 2022 | 12 | 7,213 |
| 2023 | 15 | 6,186 |
| 2024 | 16 | 5,870 |
| 2025 | 10 | 8,185 |

### England and Wales, boys

| Year | Babies | Rank |
|---|---|---|
| 2017 | 3 | 4,812 |

## In other languages

- Armenian: Թադեւոս
- Bulgarian: Тадей
- Chinese: 撒迪厄斯
- Czech: Tadeáš
- Dutch: Thaddeüs
- Esperanto: Tadeo
- French: Thadée
- Greek: Θαδδαίος
- Hungarian: Tádé
- Italian: Taddeo
- Lithuanian: Tadas
- Polish: Tadeusz
- Portuguese: Tadeu, Thadeu
- Russian: Фадде́й
- Spanish: Tadeo

## How to read these numbers

A count is babies registered with that name in that year, not people alive now, so a name common a century ago can have a large total and few recent births.