Kiana \ki(a)-na\ as a girl's name is pronounced kee-AHN-ah. It is of American origin. Modern name. May be a favored prefix name or a variant of Kian, an Irish Gaelic name meaning "ancient". Also possibly related to Anna. Kiana is especially favored in Hawaii, perhaps as a rhyming variant of the popular Keanu, a boy's name made familiar by actor Keanu Reeves. Keona is also a male name. See also Ciana and Keena.