What is the name of the tenth and final plague of Egypt?

The tenth and final plague of Egypt was the death of the firstborn.

In the Book of Exodus, this final disaster struck the firstborn of Egyptian people and animals. The Israelites were instructed to mark their doorposts with the blood of a lamb, so the destructive plague would “pass over” their homes. This event gives Passover its name and forms the dramatic turning point that led Pharaoh to release the Israelites.

The death of the firstborn is often confused with the ninth plague, three days of darkness. Other frequently mixed-up plagues include hail, the seventh, and locusts, the eighth. In traditional Jewish readings, the ten plagues are recited during the Passover Seder, linking the biblical story directly to the holiday’s rituals.

The traditional sequence contains ten plagues, although the Book of Exodus itself does not explicitly number them. Psalms 78 and 105 also present differing lists and orders, a detail that matters when comparing biblical passages.