The Komsa culture (Komsakulturen) is a stone age culture of hunter-gatherers that existed from around 10,000 BCE in Northern Norway.The culture is named after the Komsa Mountain in the community of Alta, Finnmark, where the remains of the culture were first discovered.

The term was first used by Norwegian archaeologist Anders Nummedal (1867-1944) after the discoveries he made in the Komsa Mountains during 1925.

The distinction between a "Komsa" type of stone-tool culture north of the Arctic Circle and a "Fosna" type from Trøndelag to Oslo Fjord was rendered obsolete in the 1970s.

Nowadays both phenomena are ascribed to different types of tools of the same culture.Archaeological evidence indicates that the Komsa culture was almost exclusively sea-oriented, living mainly off seal hunting and being able boatbuilders and fishermen.

In comparison to the southern Norway's contemporary Fosna variety of this same culture, stone tools and other implements appear relatively crude.

This has been explained with a paucity of flintstone in the region.