ʿAmmar ibn ʿAlī ibn Abī al-Ḥusayn al-Kalbī (Arabic: عمار بن علي بن أبي الحسين الكلبي‎) was a member of the Kalbid family and a military commander for the Fatimid Caliphate in its wars with the Byzantine Empire in Sicily and southern Italy in the 950s.