What is John in Hawaiian?
John is Keoni in Hawaiian, said keh-OH-nee. This is a recorded form rather than an invented one: it is how the name was written in Hawaiian-language newspapers, church records, and family Bibles from the 1800s onward.
How John became Keoni
When the first Hawaiian alphabet was printed in 1826 it was fixed at thirteen letters, the five vowels and h, k, l, m, n, p, w, plus the ʻokina. Every foreign name had to be written with those letters and no others, so Hawaiians wrote what they heard, swapping each missing sound for the nearest one the language had.
In John J became I, and and a vowel was added at the end. A Hawaiian word cannot finish on a consonant, which is where the last vowel comes from.
Keoni has a page of its own as a Hawaiian given name, with its popularity and the names it is usually paired with.
How to say Keoni
Say it keh-OH-nee. Hawaiian vowels never change value: a is “ah”, e is “eh”, i is “ee”, o is “oh”, u is “oo”. Every vowel is sounded, so there are as many syllables as there are vowels or vowel pairs. The pronunciation guide covers the whole system.