Search gender: all male female ロウジュウロウ Japanese Boy Names Variations. 1 names found. gender: all male female Name: rojuro Katakana: ロウジュウロウ 0 Kanji: 楼十郎 Meaning: 楼Tower 十Ten. Kanji character for the number 10 (ten). The next number after nine. A large number. A number of things. A shape in which lines intersect vertically and horizontally. 郎Male. Men. Young men. A word that refers broadly to boys. A retainer. You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > ロウジュウロウ Japanese Boy Names Variations.