Karasjok, in Northern Sami Kárášjohka (Kven and Finnish: Kaarasjoki), is a municipality in Finnmark in Norway. It is the country's second largest municipality in extent with an area of ​​5,464 km². The municipality borders Finland (Utsjok in the east and Inari in the southeast), and in Norway to Kautokeino in the west and southwest, Alta in the northwest, Porsanger in the north and Tana in the northeast. The municipality's administrative center and only settlement is Karasjok, (1,811 inhabitants on 1 January 2020). The municipality's highest point is Vuorji 1024 masl on the border with Porsanger in the northwest.

Norway's largest contiguous wilderness area, southeast of Finnmarksvidda (4417 square kilometers), is divided by the municipalities of Karasjok and Kautokeino.

Important industries include reindeer husbandry and agriculture with the addition of outfield industries such as hunting and fishing. Today, the Quaternary industry (public administration, services, etc.) employs the most workers in the municipality.

Around 80% of the municipality's inhabitants are Sami - speaking, and Sami and Norwegian are equal as the administrative language.

The municipality is named after the river that flows through the municipality, Karasjohka (Kárášjohka). The name johka is Sami and means river. The name karas probably comes from Sami and means wooden barrel, or from Finnish (kara) which means meandering - the meandering river. The village grew out of the old winter camp Ávjuvárri, which was located approx. 40 km from what is today Karasjok center.

Karasjok, like Kautokeino, was a Swedish parish until Denmark-Norway took over the area by the Strømstad Treaty in 1751. Until 1866, Karasjok was part of Kistrand municipality.

Karasjok is one of several cultural and social arenas for Sami in Norway. Important Sámi institutions have been added here, such as Sámediggi / Sámi Parliament, NRK Sápmi, the national museum De Sámi Samlinger, Sámi specialist medical center, Sámi artist center, Indre Finnmark prostitute, Sámi special library, Indre-Finnmark legal aid office and Child and adolescent psychiatric outpatient clinic. (source: Karasjok municipality)

The three bonfires in the municipal coat of arms symbolize the peaceful meeting of three tribes: Sami, Finns and Norwegians.

The nearest airport is Lakselv Airport, Banak, 75 km north of Karasjok.