Search gender: all male female 后 Japanese Names Variations. 1 names found. gender: all male female Name: kengo Katakana: ケンゴ 0 Kanji: 謙后 Meaning: 謙"Humility." 后Empress You can save your favorite names with NAZUKE PON > About Japanese Names > Search Japanese Names By Kanji > 后 Japanese Names Variations.