Search gender: all male female ロクサブロウ Japanese Boy Names Variations. 1 names found. gender: all male female Name: rokusaburo Katakana: ロクサブロウ 0 Kanji: 六三郎 Meaning: 六Six. Sixth. Kanji character for the number 6 (six). A number that is one more than five. 三Three. The third. Kanji to represent the number 3 (three).Again. Again and again. Many times. 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 > ロクサブロウ Japanese Boy Names Variations.