From ka (“the”) + inoa (“name; namesake”). Originally given as a second name to a child who was named after a relative, or in honor of the family surname. Later sometimes interpreted as kai (“sea”) + noa (“free of taboo”).
- A male given name; formerly also given to women.
- Hawaii State Archives: Marriage records Kainoa occurs in 19th century marriage records as the only name of 17 women and 13 men
- Social Security Administration: Popular Baby Names by State: Kainoa was included in the top hundred first names for boys born in the State of Hawaii during 1990-2008.