The Veleti,[b] also known as Veletians, Wilzi, Wielzians, and Wiltzes, were a group of medieval Lechitic tribes within the territory of Western Pomerania, related to Polabian Slavs.

The Bavarian Geographer's anonymous medieval document compiled in Regensburg in 830 contains a list of the tribes in Central Europe east of the Elbe.

The Veleti did not remain a unified tribe for long: local tribes developed, the most important being: the Kissini (Kessiner, Chizzinen, Kyzziner) along the lower Warnow and Rostock, named after their capital Kessin; the Circipani (Zirzipanen) along the Trebel and Peene Rivers, with their capital believed to be Teterow and strongholds in Demmin and probably even Güstrow; the Tollenser east and south of the Peene along the Tollense River; and the Redarier south and east of the Tollensesee on the upper Havel.

This political splitting of the Veleti probably occurred due to the size of the inhabited area, with settlements grouped around rivers and forts and separated by large strips of woodlands.

Einhard made these claims in "Vita Karoli Magni" (Life of Charles the Great), a biography of Charlemagne, King of the Franks.