Wad Madani (wäd mädäˈnē) [key], city (1993 pop. 211,362), SE cental Sudan, on the Blue Nile River. It is linked by rail with Khartoum and is the chief center of the Al Gezira agricultural region. Cotton, wheat, barley, and livestock are among the products of the city. Wad Madani has an agricultural research station. A small Turko-Egyptian administrative post in the 19th cent., the city grew rapidly after the implementation (1925) of a program to develop Al Gezira.