Search gender: all male female Jotaro Name Meaning, Kanji Variations. 81 names found. gender: all male female Name: jotaro Katakana: ジョウタロウ 0 Kanji: 城太郎 Meaning: 城Castle 太Abundantly large. Large in circumference. Thick. Flabby. Very. A word used to refer to a person of high rank or status. 郎Male. Men. Young men. A word that refers broadly to boys. A retainer. You can save your favorite names with prev12345 NAZUKE PON > About Japanese Names > Search For Japanese Names > Jotaro Name Meaning, Kanji Variations.