Krystallopigi (Greek: Κρυσταλλοπηγή; Bulgarian: Смърдеш, Smardesh or Smrdesh, Macedonian: Смрдеш, Smrdeš) is a former community in Florina regional unit, West Macedonia, Greece. Krystallopigi means "crystal source". Since the 2011 local government reform it is part of the municipality Prespes, of which it is a municipal unit. The population is 383 (2001). The main village is also called Krystallopigi. After the Greek Civil War, the village was resettled with Aromanians from Epirus. Today they still form the majority of the towns population. Here is located the depopulated village Vambel.