Seishi as a Baby Name. Meaning and Origin of Seishi

What is the meaning of the name Seishi ?

The baby name Seishi is a Male name , 2 syllables long and is pronounced SAY-shee (Japanese IPA: /seːɕi/).

Seishi is Japanese in Origin.

Seishi (セイシ) is a Japanese masculine given name whose meaning depends on the kanji chosen. Common pairings include 正志 “upright will,” 誠志 “sincere resolve,” 清志 “pure intention,” 聖史 “sacred history,” and 斉史/斎史 “harmonious history”; rarer 星志/星史 evoke stars and chronicles. As 勢至, Seishi names the bodhisattva Mahāsthāmaprāpta in Pure Land Buddhism, giving the name associations with great spiritual power and enlightened assistance.

The name saw steady use in the 20th century and feels classic today, linked to cultural figures such as mystery novelist Yokomizo Seishi (横溝正史) and manga artist Kishimoto Seishi (岸本聖史). Variants span numerous kanji spellings and the short form Sei (誠, 清, 星). Related names include Seiji and Masashi when the same characters take different readings. Modern frequency is low, lending Seishi a distinctive, scholarly tone with traditional resonance.

⚙ Seishi is an uncommon pick. Our records hold just 15 recorded uses, spread over 4 countries.