Shiga Chikatsugu (志賀 親次), Chikayoshi (親善) or Kozaemon no Jō (小左衛門尉), was a samurai who lived in Japan during the Sengoku period and the beginning of the Edo period. He was the son of Shiga Chikamori and the brother of Shigashi and Shiga Chikanori. He and his family served the Otomo clan, a major samurai clan who ruled a large part of the Bungo Province.