Dawit II (Ge'ez: ዳዊት dāwīt), also known as Wanag Segad (wanag sagad, 'to whom lions bow'), better known by his birth name Lebna Dengel (Ge'ez: ልብነ ድንግል Ləbnä Dəngəl; 1501 – September 2, 1540), was nəgusä nägäst (1508–1540) of the Ethiopian Empire. A member of the Solomonic dynasty, he was the son of Emperor Na'od and Queen Na'od Mogasa. The important victory over Adal leader Mahfuz may have given Dawit the appellation Wanag Segad, which is a combination of Ge'ez and Harari terms.

Although she was well into her seventies, the Empress Mother Eleni stepped in to act as her step-great-grandson's regent until 1516, when he came of age. During this time, she was aware that the neighboring Muslim states were benefitting from the assistance of other, larger Muslim countries like the Ottoman Empire. Eleni sought to neutralize this advantage by dispatching the Armenian Mateus to Portugal to ask for assistance. However, the Portuguese response did not arrive in Ethiopia until much later, when an embassy led by Dom Rodrigo de Lima arrived at Massawa on April 9, 1520. Transversing the Ethiopian highlands, they did not reach Dawit's camp until October 19 of that year. Francisco Álvares provides us a description of the Emperor:

Dawit had ambushed and killed Emir Mahfuz of Adal in 1517. About the same time a Portuguese fleet attacked Zeila, a Muslim stronghold, and burned it. In 1523, Dawit campaigned amongst the Gurage near Lake Zway. Contemporaries concluded that the Muslim threat to Ethiopia was finally over, so when the diplomatic mission from Portugal arrived at last, Dawit denied that Mateus had the authority to negotiate treaties, ignoring Eleni's counsels. After a stay of six years, the Portuguese at last set sail and left a governing class who thought they were securely in control of the situation. As Paul B. Henze notes, "They were mistaken."

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