Judea or Judaea is a mountainous region of the Levant. Traditionally dominated by the city of Jerusalem, it is now part of Palestine and Israel. The name's usage is historic, having been used in antiquity and still into the present day; it originates from Yehudah, a Hebrew name. Yehudah was a son of Jacob, who was later given the name "Israel" and whose sons collectively headed the Twelve Tribes of Israel. Yehudah's progeny among the Israelites formed the Tribe of Judah, with whom the Kingdom of Judah is associated. Related nomenclature continued to be used under the rule of the Babylonians, the Persians, the Greeks, and the Romans. Under the Hasmoneans, the Herodians, and the Romans, the term was applied to an area larger than the historical region of Judea. In 132 CE, the Roman province of Judaea was merged with Galilee to form the enlarged province of Syria Palaestina.

The Israelites were a group of Semitic-speaking tribes in the ancient Near East who, during the Iron Age, inhabited a part of Canaan. They were also an ethnoreligious group.