Sibylla (Old French: Sibyl; c. 1159 – 25 July 1190) was the queen of Jerusalem from 1186 until her death in 1190. She reigned alongside her husband Guy of Lusignan, whom she continued to support despite his unpopularity among the barons of the Kingdom of Jerusalem.
Sibylla was the eldest daughter of King Amalric and the only daughter of his first wife, Agnes of Courtenay. Her father died in 1174, making her heir presumptive to her younger brother, King Baldwin IV; when it became clear that the 13-year-old king had contracted leprosy, the matter of Sibylla's marriage became urgent.