Who was Judas Iscariot's mother?
The Bible gives us no information on Judas Iscariot's family, so we do not know his mother. You may be confusing Judas Iscariot with another Judas mentioned in the Gospels, the man who was one of Jesus' half-brothers. Matthew records the names of all Mary's sons:
Matt. 13:55 “Is not this the carpenter’s son? Is not His mother called Mary, and His brothers, James and Joseph and Simon and Judas?
The Judas Matthew mentioned was not Judas Iscariot, the apostle who betrayed Jesus. He was a son of Mary and Joseph, and hence a half-brother of Jesus. The name Judas was a common names in Jesus' day.