Seishu

Seishu may refer to:


 * Seishu (清酒), another name for sake.
 * Seishū (勢州), another name for Ise Province.
 * Hanaoka Seishū (華岡 青洲), a Japanese surgeon of the Edo period with a knowledge of Chinese herbal medicine.
 * Hase Seishū (馳 星周), a well-known Japanese novelist.
 * Seishu Hatake (畠 世周), Japanese baseball player
 * Seishū Uragami (浦上 晟周), Japanese actor
 * Zakimi Seishū (座喜味 盛秀), politician and bureaucrat