What origin is the name Guilherme?

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

What are good sister names for Guilherme?

Names from the same portuguese tradition pair naturally with Guilherme — for example Thays, Luzia, Evora. You can browse more on our portuguese names page.

Guilherme

Discover the meaning and origin of the name Guilherme

Guilherme

Boy

Portuguese

3 syllables

Guilherme is a Portuguese boy's name meaning "Resolute protector".

Guilherme is a boy name of Portuguese origin meaning "Resolute protector". At 9 letters it is a longer name, which leaves room for a nickname. It has 3 syllables.

Origin: Portuguese
Gender: Boy
Syllables: 3

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 Guilherme

What does Guilherme mean?

Guilherme is a boy name of Portuguese origin meaning "Resolute protector".

How popular is Guilherme?

We have no birth-record ranking for Guilherme: 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 Guilherme

Thays Luzia Evora Girlene Kamilly Julieth

How to say Guilherme

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Name numerology

7is the Chaldean number for Guilherme.

Number 7 is linked with wisdom, reflection and intuition.

More names with number 7

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

Combine Guilherme with another name

Our free name combiner blends two names into new baby name ideas.

Names with a similar meaning to Guilherme

Guilherme 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