Search gender: all male female Ruken Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: ruken Katakana: ルケン 0 Kanji: 瑠健 Meaning: 瑠Lapis lazuli. 健Healthy. Strong. Strong and sturdy. Brave. Good health. To make strong. Strong and firm. Extremely. Terribly. Tough. Competent. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Ruken Boy Name Meaning, Kanji Variations.