Mordor, also known as Mordor on Domaniewska Street, is an informal name for the area, mostly composed of office buildings, in the city of Warsaw, Poland, located within the neighbourhoods of Służewiec and western Ksawerów in the district of Mokotów. It is located in the area around Cybernetyki, Domaniewska, Marynarska, and Wołoska Streets. The area is mostly composed of office buildings, including the headquarters of branches of many multinational corporations.