Gender Masculine Usage Japanese Scripts 三郎, etc.(Japanese Kanji) さぶろう(Japanese Hiragana) Pronounced Pron. /sä.bɯᵝ.ɾo̞ː/ Meaning & History From Japanese 三 (sabu) meaning "three" and 郎 (rō) meaning "son". This was traditionally a name for the third son. Other kanji combinations are possible as well.