Hanishi (怕尼芝), read variously as Haneji and Haniji, was a local ruler of Okinawa Island, who was given the title of King of Sanhoku.
The name Hanishi appears to be a corrupt form of Haneji (羽地), a settlement in northern Okinawa (part of modern-day Nago City).
His appearance in diplomacy followed Satto's contact with a Chinese envoy from the newly established Ming dynasty in 1372.
According to an article of 1383 in the Chinese Veritable Records of the Ming, the envoy learned that there were three "kings" who were at war with each other.
In response, Hanishi, King of Sanhoku, sent a tributary mission to China for the first time in 1383.