Mersa Matruh (also spelled Marsa Matruh and Marsa Matrouh; , ) is a Mediterranean seaport and the capital of the Matrouh Governorate in Egypt. It is west of Alexandria and 222 km from Sallum, on the main highway from the Nile Delta to the Libyan border. Another highway leads south from the town, toward the Western Desert and the oases of Siwa and Bahariya.