Yanassi

Yanassi (also Yanassy and Yansas-aden, possibly reflecting the West Semitic *Jinaśśi’-Ad) was a Hyksos prince, and possibly king, of the Fifteenth Dynasty. He was the eldest son of the pharaoh Khyan, and possibly the crown prince, designated to be Khyan's successor. He may have succeeded his father, thereby giving rise to the mention of a king "Iannas" in Manetho's Aegyptiaca, who, improbably, was said to have ruled after the pharaoh Apophis.

Alternatively, the Egyptologist Kim Ryholt has proposed that Khyan was succeeded by Apophis, and because Yanassi was Khyan's eldest son, Ryholt proposed that Apophis was an usurper. This opinion has been rejected as mere speculation by scholars including David Aston. Archaeological discoveries in the 2010s show that Khyan's rule may have to be pushed further back in time, creating the need and time for one or more kings to reign between Khyan and Apophis. In addition, the Turin canon, an exhaustive list of kings written during the reign of Ramses II, can be interpreted to have credited more than 10 years of reign to a king ruling before Apophis and after Khyan, possibly Yanassi, if he was indeed Apophis' immediate predecessor.