Fljótsdalshérað
Former municipality
Skyline of Fljótsdalshérað
Location of the municipality
Fljótsdalshérað
Coordinates: 65°15′50″N 14°23′42″W / 65.264°N 14.395°W / 65.264; -14.395
Country	Iceland
Region	Eastern Region
Constituency	Northeast Constituency
Municipality	Múlaþing
Government
• Mayor	Björn Ingimarsson
Area
• Total	8,884 km2 (3,430 sq mi)
Population  (2018)
• Total	3,580
• Density	0.40/km2 (1.0/sq mi)
Postal code(s)	700, 701
Website	egilsstadir.is

Fljótsdalshérað (Icelandic pronunciation: [ˈfljoutsˌtalsˌçɛːraθ] ^ⓘ) was a municipality located in eastern Iceland. In 2020 it merged with three neighbouring municipalities to form Múlaþing.