Search gender: all male female Watao Girl Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: watao Katakana: ワタオ 0 Kanji: 綿緒 Meaning: 綿Cotton. A long strand. Fine. Small. 緒The beginning of things. Connection. A thought caused by a thing. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Watao Girl Name Meaning, Kanji Variations.