What are good sister names for Willliam?

Names from the same unknown tradition pair naturally with Willliam — for example Kayleemarie, Tanzy, Kimmey. You can browse more on our unknown names page.

Is it Willliam or William?

Both spellings are used. Willliam means "Resolute protector"; William is listed with the meaning "William comes from the Germanic Willahelm, from wil 'will, desire' and helm 'helmet, protection', so 'resolute protector'.". Families often choose the spelling that matches how the name is written in their language, or the one that is easiest to pronounce where they live.

Willliam

Discover the meaning and origin of the name Willliam

Willliam

Boy

Unknown origin

2 syllables

Willliam is an Unknown origin boy's name meaning "Resolute protector".

Willliam is a boy's name meaning "Resolute protector". At 8 letters it is a longer name, which leaves room for a nickname. It has 2 syllables.

Origin: Unknown origin
Gender: Boy
Syllables: 2

Last updated 24 October 2026.

What does Willliam mean?

Resolute protector

How popular is Willliam?

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

Quick answers about Willliam

What does Willliam mean?

Willliam is a boy name of Unknown origin origin meaning "Resolute protector".

How popular is Willliam?

We have no birth-record ranking for Willliam: 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 Willliam

Kayleemarie Tanzy Kimmey Sarabi Guyanne Aiysha

How to say Willliam

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Name numerology

4is the Chaldean number for Willliam.

Number 4 is linked with stability, hard work and loyalty.

More names with number 4

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

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Other spellings of Willliam

Parents also search for these spellings. Each has its own page with its meaning and origin.

William — "William comes from the Germanic Willahelm, from wil 'will, desire' and helm 'helmet, protection', so 'resolute protector'." (German)

Compare Willliam with William

Willliam at a glance

Letters: 8
Syllables: 2
Starts with: W
Ends with: -am
Vowels: 3 of 8 letters

Which other names end in -am?

Liam William

8-letter boy names

Which names have a similar meaning to Willliam?

Willliam 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