Samuel is a figure who, in the narratives of the Hebrew Bible, plays a key role in the transition from the biblical judges to the United Kingdom of Israel under Saul, and again in the monarchy's transition from Saul to David. He is venerated as a prophet in Judaism, Christianity, and Islam. In addition to his role in the Bible, Samuel is mentioned in Jewish rabbinical literature, in the Christian New Testament, and in the second chapter of the Quran. He is also treated in the fifth through seventh books of Antiquities of the Jews, written by the Jewish scholar Josephus in the first century. He is first called "the Seer" in 1 Samuel 9:9.

The judges whose stories are recounted in the Hebrew Bible, primarily in the Book of Judges, were individuals who served as military leaders in Israel in times of crisis, in the period before the monarchy was established.