Lake Mariout (Arabic: بحيرة مريوط Boḥēret Maryūṭ, IPA: [boˈħeːɾet mɑɾˤˈjuːtˤ], also spelled Maryut or Mariut), is a brackish lake in northern Egypt near the city of Alexandria. The lake area covered 200 square kilometres (77 sq mi) and had a navigable canal at the beginning of the 20th century, but at the beginning of the 21st century, it covers only about 50 square kilometres (19 sq mi).