Kusaila (Arabic: Kusaila Ibn Malzam, Latin: Caecilius) was a 7th-century Berber Christian ruler of the kingdom of Altava and leader of the Awraba tribe, a Christianised sedentary tribe of the Aures of the Imazighen and possibly Christian king of the Sanhaja. Under his rule his domain stretched from Volubilis in the west to the Aurès in the east and later Kairouan and the interior of Ifriqiya. He is known for prosecuting an effective Berber military resistance against the Muslim conquest of the Maghreb in the 680s. His name means "leopard" in the Berber language. Kusaila died in the year 688 fighting the Muslims.