Search gender: all male female Gundayu Boy Name Meaning, Kanji Variations. 1 names found. gender: all male female Name: gundayu Katakana: グンダユウ 0 Kanji: 軍太夫 Meaning: 軍Army 太Abundantly large. Large in circumference. Thick. Flabby. Very. A word used to refer to a person of high rank or status. 夫Husband. A man who is married. An adult male. A full-fledged man. A respectable man. A man engaged in labor. You can save your favorite names with NAZUKE PON > About Japanese Names > Search For Japanese Names > Gundayu Boy Name Meaning, Kanji Variations.