Search gender: all male female Yamao Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: yamao Katakana: ヤマオ 0 Kanji: 山雄 Meaning: 山Mountain 雄Male. The male of an animal. Brave. An excellent person. Large in scale. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Yamao Boy Name Meaning, Kanji Variations.