In the entire world, アユカ (アユカ ) is an extremely rare unknown gender first name. Much more prevalently, アユカ is the last name as well as the forename.
Ayuka
モリ, ナイトウ, ナカムラ, サイトウ, タカヤナギ, タカハシ, イシカワ, ヤマザキ, ミヤモト, ワタナベ, ホシノ, ヤブキ, ヤマダ, ゴトウ, ウエダ, ササキ, カサイ, カネコ, トザワ, ヨシダ, and ミドリカワ
) is an extremely rare unknown gender first name. Much more prevalently, アユカ is the last name as well as the forename.