Akrahreppur (Icelandic pronunciation: [ˈaːkraˌr̥ɛhpʏr̥] ⓘ, regionally also [ˈaːkʰra-]), previously called Blönduhlíðarhreppur,[1] is a former municipality, or hreppur, situated in the Northwestern Region of Iceland, and located east of the Héraðsvatn, north of the Kyrfisá, and leading south to Hofsjökull.

[1] A small amount of geothermal energy is used in some places in Akrahreppur, and a swimming pool was built in Víðivellir in 1938, but it is no longer in use.

[1] The municipality spans all Blönduhlíð and Norðurádalur, Kjálki, and Austurdalur, except for the town of Bústaðir, which belongs to Skagafjörður County.

Some abandoned farms in Vallhólmur also belong to Akrahreppur although they are now west of the Héraðsvatn because the boundary moved.

[1] The poet Hjálmar Jónsson lived in various towns in Akrahreppur during the 19th century and is named after one of them, Bóla in Blönduhlíð.