Damietta (دمياط Dumyāṭ ; ⲧⲁⲙⲓⲁϯ) is a port city and the capital of the Damietta Governorate in Egypt, a former bishopric and present multiple Catholic titular see. It is located at the Damietta branch, an eastern distributary of the Nile Delta, 15 km from the Mediterranean Sea, about 200 km north of Cairo. Damietta joined the UNESCO Global Network of Learning Cities.
The modern name of the town comes from its Coptic name Tamiati (ⲧⲁⲙⲓⲁϯ Late Coptic: ), which in turn most likely comes from Ancient Egyptian dmj.t ("harbour, port"), although al-Maqrizi suggested a Syriac etymology.