Arima Yoshisada (1521-1576) was a Japanese daimyo from Hizen. He lived during the Sengoku period. He was the son and successor of Arima Haruzumi and the father of Kirishitan daimyo Arima Harunobu. He was the 12th head of the Arima clan.
- Occupation
- military personnel
- Position held
- daimyo
- Born
- 1521
- Died
- January 15, 1577