The name Keoni is a Hawaiian name derived from the English name John. The name John has its roots in the Hebrew name Yochanan, which means "Yahweh is gracious." The Hawaiian language adapted the name John to Keoni, which is pronounced as "kay-o-nee."

The name Keoni gained popularity in Hawaii during the 19th century, when Christian missionaries arrived in the Hawaiian Islands and introduced Western names. As Hawaiians embraced Christianity, they often adopted biblical names or Hawaiian variations of those names, such as Keoni.

One of the earliest recorded instances of the name Keoni can be found in the Hawaiian language newspaper "Ka Nupepa Kuokoa," which was published in the late 19th century. The newspaper featured articles mentioning individuals with the name Keoni.

Throughout history, several notable individuals have borne the name Keoni. One example is Keoni Fairbanks (1897-1979), a Hawaiian musician and composer known for his contributions to Hawaiian music. Another is Keoni Kaheaku Kaukau (1890-1974), a Hawaiian historian and author who documented traditional Hawaiian culture and practices.

Keoni Waimapuna'a Kealoha (1878-1963) was a Hawaiian entrepreneur and businessman who played a significant role in the development of the pineapple industry in Hawaii. Keoni Kealoha Uli (1857-1932) was a Hawaiian high chief and landowner who was instrumental in preserving Hawaiian cultural traditions and practices.

Keoni Kaukau (1891-1971) was a Hawaiian hula master and teacher who dedicated his life to perpetuating the art of hula and preserving Hawaiian cultural traditions. He played a crucial role in reviving and promoting the ancient Hawaiian hula tradition.

While the name Keoni may have its origins in the English name John, it has become deeply ingrained in Hawaiian culture and has a rich history dating back to the 19th century. The name carries cultural significance and has been borne by many notable figures who have contributed to the preservation and promotion of Hawaiian heritage and traditions.