93%RatingSave Gender Masculine Usage Japanese Scripts 九郎, etc.(Japanese Kanji) くろう(Japanese Hiragana) Pronounced Pron. KOO-RO [key·IPA] Meaning & History From Japanese 九 (ku) meaning "nine" and 郎 (rō) meaning "son". This name was traditionally given to the ninth son. Other combinations of kanji characters are also possible. Related NamesFamily Tree·Details VariantsKuro, KurouSame SpellingKuro Categories birth order, family, isograms, numeric meanings