The Sinai insurgency was an insurgency in the Sinai Peninsula of Egypt, launched by Islamist militants against Egyptian security forces, which have also included attacks on civilians. The insurgency began during the Egyptian Crisis, during which the longtime Egyptian president Hosni Mubarak was overthrown in the 2011 Egyptian revolution.

The Sinai Peninsula, or simply Sinai, is a peninsula in Egypt, and the only part of the country located in Asia. It is between the Mediterranean Sea to the north and the Red Sea to the south, and is a land bridge between Asia and Africa. Sinai has a land area of about 60,000 km2 (23,000 sq mi) and a population of approximately 600,000 people. Administratively, the vast majority of the area of the Sinai Peninsula is divided into two governorates: the South Sinai Governorate and the North Sinai Governorate. Three other governorates span the Suez Canal, crossing into African Egypt: Suez Governorate on the southern end of the Suez Canal, Ismailia Governorate in the center, and Port Said Governorate in the north.