The name Kainoa is a girl's name meaning "the namesake".

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Unisex Hawaiian name with great potential on the mainland.

Hawaiian Names

Kainoa

The name Kainoa is a boy's name meaning "the namesake; sea of freedom".

6 Letter Boy Names

Names Ending in A for Boys

Two Syllable Names for Boys

Intriguing Hawaiian option that combines the sounds two popular boy names—Kai and Noah — but is in a name in its own right, not a newly created compound name — and is pronounced just slightly differently. The name has two possible meanings: from the elements kai and noa it means "sea of freedom", whereas from ka and inoa, it means "the name(sake)". 
 
Given to around 100 boys in the US, a large majority born outside of Hawaii. Several contemporary sports players including Kainoa Winston, Kainoa Bailey, and Kainoa Lloyd may have helped the name reach a wider audience.

Kainoa

Kainoa Origin and Meaning

The name Kainoa in Nameberry Blog Posts