Jirou as a Baby Name. Meaning and Origin of Jirou

What is the meaning of the name Jirou ?

The baby name Jirou is a Male name , 2 syllables long and is pronounced JEE-roh (IPA: /dʑiɾoː/).

Jirou is Japanese in Origin.

Jirou (also Jirō or Jiro in Hepburn romanization) is a traditional Japanese masculine given name. It combines ji - commonly written 次 “next” or 二 “two” - with rō, typically 郎 “son, young man” or 朗 “bright, clear.” The standard spellings 次郎 and 二郎 convey the classic sense “second son” or “next-born boy.” Alternative kanji shift nuance, as in 治郎 “to govern/heal,” 慈郎 “benevolent,” 次朗 or 二朗 “next/two + bright,” showing that meaning depends on the characters chosen.

Rooted in the Edo-period practice of birth-order names alongside Tarō, Saburō, Shirō, and Gorō, Jirou became a staple male name and remains familiar even when not reflecting actual birth order. Modern romanizations vary by preference - Jiro (simplified), Jirō (with macron), or Jirou (long-vowel spelling). Well-known bearers include master sushi chef Jiro Ono and aeronautical engineer Jirō Horikoshi.

⚙ Jirou is about as rare as a name gets. We hold just 20 recorded uses of it, from 10 countries.