Seltjarnarnes

Seltjarnarnes
Municipality and Town
Seltjarnarnes
Coat of arms
Location of the municipality
Seltjarnarnes
Coordinates: 64°9′15″N 22°0′0″W / 64.15417°N 22.00000°W / 64.15417; -22.00000
Country	Iceland
Region	Capital Region
Constituency	Southwest Constituency
Market right	20 April 1974
Government
• Mayor	Þór Sigurgeirsson (IP)
Area
• Total	2 km2 (0.8 sq mi)
Population  (2023)
• Total	4,674
• Density	2,300/km2 (6,100/sq mi)
Postal code(s)	170–172
Municipal number	1100
Website	seltjarnarnes.is (in Icelandic)

Seltjarnarnes (Icelandic pronunciation: [ˈsɛlˌtʰja(r)tnarˌnɛːs] ^ⓘ) is a town in the Capital Region of Iceland. The municipality is located on a peninsula, bordered only by Reykjavík to the east.

It took on its current political form shortly after the Second World War and was formally created as a township in 1947. It is the smallest Icelandic township by land. The municipality's small land size relative to its population makes it Iceland's most densely populated municipality.