Chiuchow Teochew /tiˈoʊtʃuː/ or Chiuchow /ˈtʃuːtʃaʊ/ (潮州; peng'im: Dio⁵ziu¹ [ti̯o˥˥꜖꜖.tsi̯u˧˧]) is a historical area that is mostly within the modern Chaoshan region, eastern Guangdong, China.