# Diederik (first name)

Source: https://namelineage.com/first-name/diederik/  
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 | Dutch |
| Meaning | not recorded |
| Pronunciation | not recorded |
| Nicknames | none recorded |
| Variant spellings | none recorded |
| US babies named this | not in the US data |
| Boys / girls in the US | not in the US data |
| Babies in England and Wales | not in the ONS data |

## Etymology

Of Dutch origin, from Middle Dutch Diederic, from Old Dutch *Thiodarīk, from Frankish *Theodarīk, ultimately from Proto-Germanic *Þeudarīks. Compare with Derek, Theodoric.

## People named Diederik

- Diederik Samsom, Dutch politician, chief executive and environmental activist
- Diederik Boer, Dutch footballer (born 1980)
- Diederik Korteweg, Dutch mathematician (*1848 – †1941)
- Diederik Simon, Dutch rower
- Diederik A. Stapel, Dutch social psychology (born 1966)
- Diederik van Weel, field hockey player
- Diederik Jansz. Graeff, Dutch Mayor
- Theodwin of Liège, bishop of Liège
- Theodoric II, Count of Montbéliard, Count of Montbeliard

## 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.