What origin is the name Cajus?

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

What are good sister names for Cajus?

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

Is it Cajus or Kajus?

Both spellings are used. Cajus means "Rejoice"; Kajus is listed with the meaning "Means "rejoice"; a Latin-derived name signifying happiness and joy.". 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.

Cajus

Discover the meaning and origin of the name Cajus

Cajus

Boy

International

2 syllables

Cajus is an International boy's name meaning "Rejoice".

Cajus is a boy's name of International origin meaning "Rejoice". It has 2 syllables.

Origin: International
Gender: Boy
Syllables: 2

Last updated 24 October 2026.

What does Cajus mean?

Rejoice

How popular is Cajus?

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

Quick answers about Cajus

What does Cajus mean?

Cajus is a boy name of International origin meaning "Rejoice".

How popular is Cajus?

We have no birth-record ranking for Cajus: 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.