Julia Iotapa or Julia Iotape, sometimes known as Julia of Cilicia (Greek: Ίουλία Ιοτάπα; born c. 80), was a Cilician princess who lived in the 1st century and 2nd century. Daughter of King Gaius Julius Alexander of Cetis, she married Gaius Julius Quadratus Bassus, Galatian Roman Senator from Anatolia.