Kai Aage Eide is a Norwegian diplomat and writer. He was appointed the United Nations Special Representative to Afghanistan and Head of the United Nations Assistance Mission in Afghanistan (UNAMA) on 7 March 2008, a position he held until March 2010 when Staffan de Mistura took over.

Sarpsborg, historically Borg, is a city and municipality in Østfold county, Norway. The administrative centre of the municipality is the city of Sarpsborg.