The Rani dialect or Lechito-Rani supradialect is an extinct Slavic Lechitic dialect used by the Rani tribe – the medieval Slavic inhabitants of the island of Rügen (in Rani dialect: Rȯjana, Rāna) and its opposite coast. This dialect, because of its closer affinity to the Drevani language than to the Pomeranian area, should be classified as a West Lechitic dialect.
The dialects of Rügen have left no written monuments, so the main source of knowledge about them is the toponyms and personal names of Slavic origin recorded in medieval chronicles.