Seizō, Seizo, Seizou or Seizoh (written: 精三, 省三 or せいぞう in hiragana) is a masculine Japanese given name. Notable people with the name include:
*, Japanese actor
*, Japanese voice actor
*, Imperial Japanese Navy admiral and Governor-General of Taiwan
*, Imperial Japanese Navy admiral
*, Japanese horticulturist
*, Japanese politician
*, Japanese manga artist and illustrator
*, Japanese student who joined the Imperial Japanese Navy
{{DEFAULTSORT:Seizo
Japanese masculine given names
Masculine given names