What origin is the name Isabellus?

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

What are good sister names for Isabellus?

Names from the same international tradition pair naturally with Isabellus — for example Nautica, Arica, Laisha. You can browse more on our international names page.

Isabellus

Discover the meaning and origin of the name Isabellus

Isabellus

Boy

International

4 syllables

Isabellus is an International boy's name meaning "God is my oath".

Isabellus is a boy's name of International origin meaning "God is my oath". At 9 letters it is a longer name, which leaves room for a nickname. It has 4 syllables.

Origin: International
Gender: Boy
Syllables: 4

Last updated 24 October 2026.

What does Isabellus mean?

God is my oath

How popular is Isabellus?

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

Quick answers about Isabellus

What does Isabellus mean?

Isabellus is a boy name of International origin meaning "God is my oath".

How popular is Isabellus?

We have no birth-record ranking for Isabellus: 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 Isabellus

Nautica Arica Laisha Latrina Fredia Jalissa

How to say Isabellus

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Name numerology

9is the Chaldean number for Isabellus.

Number 9 is linked with compassion, generosity and idealism.

More names with number 9

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

Compare Isabellus with other names

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Isabellus at a glance

Letters: 9
Syllables: 4
Starts with: I
Ends with: -us
Vowels: 4 of 9 letters

9-letter boy names

Which names have a similar meaning to Isabellus?

Isabellus means "God is my oath" — these names share that spirit.

Isabella — "Isabella is the Italian and Spanish form of Elizabeth, from the Hebrew Elisheva, meaning 'my God is an oath' or 'pledged to God'." (Hebrew)
Elizabeth — "Elizabeth comes from the Hebrew Elisheva, meaning 'my God is an oath'. It is the name of John the Baptist's mother." (Hebrew)

More names by meaning: Boy Names That Mean God & Divine