Shizuo (written: 静夫, 静雄, 静男 or 鎮雄) is a masculine Japanese given name. Notable people with the name include:
Shizuo Akira (審良 静男) (born 1953), Japanese immunologist
Amanoyama Shizuo (天ノ山 静雄) (1953–1997), Japanese sumo wrestler
Shizuo Fujieda (藤枝 静男) (1907–1993), Japanese writer
Shizuo Imaizumi (今泉 鎮雄) (born 1938), Japanese aikidoka
Shizuo Kakutani (角谷 静夫) (1911–2004), Japanese-born American mathematician
Shizuo Miyama (深山 静夫), Japanese footballer
Nayoroiwa Shizuo (名寄岩 静男) (1914–1971), Japanese sumo wrestler
Shizuo Takada (高田 静夫) (born 1947), Japanese footballer and referee
Shizuo Yada (矢田 静雄) (born 1948), Japanese sport wrestler
Shizuo Yokoyama (横山 静雄) (1890–1961), Japanese general
