(Note: There are two glaciers named Hofsjökull in Iceland . One is its own large glacier shield right in the geographical center of the country, the second is a former side glacier of Vatnajökull .)

Hofsjökull (Icelandic: "temple glacier", Icelandic pronunciation: [ˈhɔfsˌjœːkʏtl̥] ^ⓘ) is the third largest ice cap in Iceland after Vatnajökull and Langjökull and the largest active volcano in the country.^[1] It is situated in the west of the Highlands of Iceland and north of the mountain range Kerlingarfjöll, between the two largest glaciers of Iceland. It covers an area of 925 km², reaching 1,765 m (5,791 ft) at its summit.^[2] The subglacial volcano is a shield type with caldera.^[3]

Hofsjökull is the source of several rivers including the Þjórsá, Iceland's longest river.^[4]

In 2015, Hofsjökull increased in mass, the first time in 20 years this had happened.^[5]

In the southeast of Iceland, between the easternmost glacier tongue of Vatnajökull (Axajökull) and Þrándarjökull, there is a smaller glacier (area about 4 km²), which is also called Hofsjökull.^{[citation needed]}

• Glaciers of Iceland
• Iceland plume
• Volcanism of Iceland
  • List of volcanic eruptions in Iceland
  • List of volcanoes in Iceland