Search gender: all male female Tsubuo Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: tsubuo Katakana: ツブオ 0 Kanji: 粒男 Meaning: 粒Grain 男Male. Adult male. Son. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Tsubuo Boy Name Meaning, Kanji Variations.