Tuti Island (also spelled Tutti Island) is an island in Sudan where the White Nile and Blue Nile merge to form the main Nile. It is surrounded by the "Three Towns": Khartoum (the capital of Sudan), Omdurman (the largest city in Sudan), and Khartoum North (also known as Bahri, a large industrial center). Despite this, Tuti is home to only one small village (founded in the late 15th century), with grassland being the main makeup of the island.