Ali II ibn Hussein (24 November 1712 – 26 May 1782) (Arabic: أبو الحسن علي باي) was the fourth leader of the Husainid dynasty and the ruler of Tunisia from 1759 until his death in 1782. He was the son of Al-Husayn I ibn Ali. He was succeeded in turns by his sons Hammuda ibn Ali and Uthman ibn Ali.