一夜 いよな female given name or forename Also 一夜: いちや one night いちや Ichiya かずや Kazuya かずよ Kazuyo 一夜いよな female given name or forename English JMnedict (Japanese names) 1 Iyona 漢字 kanji used 一 one, one radical (no.1) 1画 夜 night, evening 8画