According to the Book of Judges, Eglon (Hebrew: עֶגְלוֹן 'Eglon) was a king of Moab who oppressed Israel.

[3] One day, Ehud, who was left handed, came presenting a customary tribute and tricked Eglon and stabbed him with his sword, but when Ehud attempted to draw the sword back out, the obese king's excess fat prevented its retrieval.

In the aftermath of his death, the Moabites were routed and the Israelites enjoyed eighty years of peace.

According to this tradition, Eglon was rewarded for rising out of respect when Ehud mentioned the Israelite God by having King David as a descendant.

Talmudic folklore states that, because Eglon stood up when Ehud said he had a message for him from God (Judges 3:20), his reward was that his descendant would be King David.