Landmannalaugar (Icelandic pronunciation: [ˈlan̥tmanːaˌløiɣar̥] ( listen)) is a place in the Fjallabak Nature Reserve  in the highland of Iceland. It is at the edge of Laugahraun lava field that was formed in an eruption around the year 1477. It is known for its natural geothermal hot springs and surrounding landscape.
Landmannalaugar is the northern end of the Laugarvegur hiking trail and a popular destination for tourists traveling in Iceland. The Iceland Touring Association operates a mountain hut with sleeping bag accommodation for 75 people and a public toilet with showers. During the tourist high season there is also a small shop there that sells coffee and basic groceries, a horse tour agency and ICE-SAR highland patrol in Fjallabak operates from there. Several bus companies have regular trips to and from there during the tourist season.