Alta is the most populated municipality in Finnmark county, Norway. The administrative centre of the municipality is the town of Alta. Some of the main villages in the municipality include Kåfjord, Komagfjord, Kvenvik, Langfjordbotn, Leirbotn, Rafsbotn, Talvik, and Tverrelvdalen.

The Rock carvings at Alta, dating from c. 4200 BC to 500 BC, are on the UNESCO list of World Heritage Sites. The Komsa culture was named after the Komsa mountain in Alta municipality, where the first archeological remains of this culture were discovered.