Edku is a town in the Beheira Governorate, located east of Alexandria and west of Rashid, overlooking the Mediterranean Sea. Edku lies on a sandy strip behind Abi Qir Bay, in the northwestern Nile River delta. Immediately south is Lake Idku, a 58-square-mile (150-square-km) lagoon that stretches some 22 miles (35 km) behind and parallel to the coast and has a maximum width of 16 miles (26 km). Drained by Al-Madiyyah Channel, connecting with the Mediterranean, the lagoon is reputed to be the ancient Canopic branch of the Nile. Edku's isthmus position enables it to capitalize on the fisheries of both the lagoon and the Mediterranean. Other industries include rice milling and silk weaving. Edku is linked by coastal road and railway to Alexandria, 26 miles (42 km) to the west-southwest, and Rosetta, 12 miles (19 km) northeast.

Beheira Governorate is a coastal governorate in Egypt. Located in the northern part of the country in the Nile Delta, its capital is Damanhur.