Merneptah or Merenptah was the fourth pharaoh of the Nineteenth Dynasty of Ancient Egypt. He ruled Egypt for almost ten years, from late July or early August 1213 BC until his death on 2 May 1203 BC, according to contemporary historical records. He was the first royal-born pharaoh since Tutankhamun of the Eighteenth Dynasty.

The Nineteenth Dynasty of Egypt, also known as the Ramessid dynasty, is classified as the second Dynasty of the Ancient Egyptian New Kingdom period, lasting from 1292 BC to 1189 BC. The 19th Dynasty and the 20th Dynasty furthermore together constitute an era known as the Ramesside period. This Dynasty was founded by Vizier Ramesses I, whom Pharaoh Horemheb chose as his successor to the throne.