What origin is the name Wilhelminus?

Wilhelminus comes from German naming traditions. Names from this origin often carry meanings tied to nature, virtues or heritage.

What are good sister names for Wilhelminus?

Names from the same german tradition pair naturally with Wilhelminus — for example Emma, Amelia, Adeline. You can browse more on our german names page.

Wilhelminus

Discover the meaning and origin of the name Wilhelminus

Wilhelminus

Boy

German

4 syllables

Wilhelminus is a German boy's name meaning "Resolute protector".

The meaning of Wilhelminus is "Resolute protector" — a boy name of German origin. At 11 letters it is a longer name, which leaves room for a nickname. It has 4 syllables.

Origin: German
Gender: Boy
Syllables: 4

Last updated 24 October 2026.

Meaning

Resolute protector

Popularity

No birth-record data (source: not in US birth records; popularity in India is not tracked)

Quick answers about Wilhelminus

What does Wilhelminus mean?

Wilhelminus is a boy name of German origin meaning "Resolute protector".

How popular is Wilhelminus?

We have no birth-record ranking for Wilhelminus: it is not in US records, and India publishes no national name rankings. The meter above fills in as parents here view, search for and save the name.

Sister names that go with Wilhelminus

Emma Amelia Adeline Lena Heidi Hanna

How to say Wilhelminus

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Name numerology

6is the Chaldean number for Wilhelminus.

Number 6 is linked with care, family and responsibility.

More names with number 6

Numerology is a cultural tradition for fun, not a prediction.

Combine Wilhelminus with another name

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Names with a similar meaning to Wilhelminus

Wilhelminus means "Resolute protector" — these names share that spirit.

Liam — "Liam is the Irish short form of William, from Germanic words meaning 'will' and 'helmet', so 'resolute protector'." (Irish)
William — "William comes from the Germanic Willahelm, from wil 'will, desire' and helm 'helmet, protection', so 'resolute protector'." (German)

More names by meaning: Boy Names That Mean Protector & Guardian