Sogō Kazumasa (十河 一存, 1532 – April 2, 1561), other name Sogō Kazunari (十河 和也), fourth son of Miyoshi Motonaga, was a Japanese samurai of the Sengoku period who was a member of Miyoshi clan, daimyō of Kawachi Province.
|Lord of Kawachi|
|Succeeded by||Miyoshi Yoshitsugu|
Shōzui Castle, Awa Province (Tokushima)
|Died||April 2, 1561 (aged 29)|
|Relations||Miyoshi Motonaga (father)|
Miyoshi Nagayoshi (brother)
Miyoshi Yoshikata (brother)
Atagi Fuyuyasu (brother)
Miyoshi Yoshitsugu (son)
Sogō Masayasu (adopted son)
Miyoshi Nagayoshi (eldest), Miyoshi Yukiyasu (second) and Atagi Fuyuyasu (third) are his elder brothers and Miyoshi Yoshitsugu is his son (later became Nagayoshi's adopted son). He latterly adopted Miyoshi Nagaharu (Yukiyasu's son) his child. He adopted Miyoshi Yoshikata's son, Masayasu.