Yohannes II or John II (Ge'ez ዮሓንስ) was nəgusä nägäst of Ethiopia, and a member of the Solomonic dynasty. He was the son of Iyasu I, and brother of Emperors Tekle Haymanot I, Dawit III and Bakaffa.
According to James Bruce, during the reign of his brother Bakaffa, the Emperor had vanished from view and a rumor circulated that Bakaffa had died. Qegnazmach Giyorgis acted on this by bringing Yohannes down from the royal prison on Wehni to rule, but before Yohannes could be proclaimed emperor, Bakaffa revealed himself and ordered the two men punished for their presumption, Giyorgis with dead and Yohannes by having his hand cut off. However, in his edition of Bruce's work Alexander Murray replaced Bruce's words with a summary of the Royal Chronicle, which records Yohannes had lost his hand for escaping from Wehni prior to this event, and instead, along with the other royal prisoners of Wehni, had refused to descend and be made Emperor.
Following the murder of Iyoas I, Ras Mikael Sehul summoned from Wehni the Emperor's elderly great-uncle, Yohannes, and presented him to the royal council as his choice for Emperor. When one of the council pointed out that Yohannes lacked one of his hands (it had been cut off in punishment for attempting to escape from Wehni), Mikael replied that if Yohannes needed help mounting his horse, he himself would help Yohannes.
Mikael married Yohannes to Mikael's own young granddaughter, Waletta Selassie.
Yohannes' reign is succinctly recounted by E. A. Wallis Budge:
- John hated all military matters, and refused to march with the army, and after hiding himself begged Michael to send him back to Wahni. Michael was bound to march with his troops, but seeing it would be fatal for his plans to leave a king like John in Gondar, he had him poisoned one morning at breakfast time.