Seijuro as a Baby Name. Meaning and Origin of Seijuro

What is the meaning of the name Seijuro ?

The baby name Seijuro is a Male name , 3 syllables long and is pronounced say-JOO-roh (Japanese: Seijūrō; approximate IPA: [se̞i.dʑɯːɾoː]).

Seijuro is Japanese in Origin.

Seijuro is a masculine Japanese given name formed from Sei + jūrō. Sei may be written with kanji such as 清 “pure,” 正 “upright,” 誠 “sincere,” 聖 “sacred,” 静 “calm,” or 征 “to conquer.” The second element jūrō most often appears as 十郎 “tenth son” (with -rō meaning “son/man”), but can also be 寿郎 “long life son,” among other writings. Depending on the characters chosen, meanings range from “pure tenth son” and “sincere son” to “victorious long‑life boy.”

Names ending in -rō were favored among samurai and townsmen from the Edo through early Meiji periods, and Seijuro carries that classical tone; today it survives mainly in traditional families and popular culture. Notable fictional bearers include Hiko Seijūrō (比古清十郎) and Akashi Seijuro (赤司征十郎). Romanized variants: Seijūrō (macron), Seijurou (long vowel marked -ou). Related forms include Seijirō/Seijiro (with -jirō 次郎/治郎 “second son”).

⚙ Seijuro is exceptionally rare. Across 8 countries, we found just 12 recorded uses of it.