The Swiderian culture is an Upper Palaeolithic/Mesolithic cultural complex, centred on the area of modern Poland. The type-site is Świdry Wielkie, in Otwock near the Swider River, a tributary to the Vistula River, in Masovia. The Swiderian is recognized as a distinctive culture that developed on the sand dunes left behind by the retreating glaciers. Rimantienė (1996) considered the relationship between Swiderian and Solutrean "outstanding, though also indirect", in contrast with the Bromme-Ahrensburg complex, for which she introduced the term "Baltic Magdalenian" for generalizing all other North European Late Paleolithic culture groups that have a common origin in Aurignacian.

The Ahrensburg culture or Ahrensburgian was a late Upper Paleolithic nomadic hunter culture in north-central Europe during the Younger Dryas, the last spell of cold at the end of the Weichsel glaciation resulting in deforestation and the formation of a tundra with bushy arctic white birch and rowan. The most important prey was the wild reindeer. The earliest definite finds of arrow and bow date to this culture, though these weapons might have been invented earlier. The Ahrensburgian was preceded by the Hamburg and Federmesser cultures and superseded by the Maglemosian and Swiderian cultures. Ahrensburgian finds were made in southern and western Scandinavia, the North German plain and western Poland. The Ahrensburgian area also included vast stretches of land now at the bottom of the North and Baltic Sea, since during the Younger Dryas the coastline took a much more northern course than today.