Keoni is the Hawaiian form of John and so means "God is gracious", from the Hebrew Yochanan; it is pronounced keh-OH-nee. The name belongs to the family of Hawaiian names like Kai and Keanu that have won parents on the mainland, and it is a common first name in Hawaii itself. Keoni ranked number 1494 in 2000, peaked at number 1462 in 2013 and sits at number 2067 in 2025.