Search gender: all male female ルヤ Japanese Boy Names Variations. 1 names found. gender: all male female Name: ruya Katakana: ルヤ 0 Kanji: 瑠也 Meaning: 瑠Lapis lazuli. 也Affirmation. Words for exclamations, questions, and antonyms. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ルヤ Japanese Boy Names Variations.