Search gender: all male female Ruyo Girl Name Meaning, Kanji Variations. 2 names found. gender: all male female Name: ruyo Katakana: ルヨ 0 Kanji: るよ Meaning: る よ Name: ruyo Katakana: ルヨ 0 Kanji: 瑠代 Meaning: 瑠Lapis lazuli. 代To replace. To substitute. Take turns. To take the place of. One who replaces. Age. A person's life. Continuing from generation to generation. A long time. Money paid for goods or labor. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Ruyo Girl Name Meaning, Kanji Variations.