Talyshistan also spelled as Talishistan, Tolishistan, Talyshistan is an unofficial designation meaning the land of Talysh people, for the historical Land of Cadusi..
This historical geographic designation has been used by the medieval geographer Muhammad Sadiq ibn Muhammad Salih Sadiq Isfahan (circa 1609).
James Minahan states:
|“||The Talysh homeland, called Talyshtan, lies in Southeastern Europe on the geographical dividing line between Europe and Asia. Most of the region in the southern districts of Azerbaijan is flat plains between the Viliazh-Chai River , the Caspian Sea, and the Iranian border and includes the Talish Mountains along the Azeri-Iranian border. The region, called Talyshstan, lies along the Caspian Sea just east and south of the Narimanabad Peninsula and includes the subtropical region of the Lenkoran Lowlands in south eastern Azerbaijan and northern Iran||”|
- "The geographical works of Sadik Isfahani. Translated by J.C. from original Persian mss. in the collection of Sir William Ouseley, the editor. London , Printed for the Oriental Translation Fund of Great Britain and Ireland ; sold by J. Murray, 1832. Oriental Translation Fund. Publications ; -- v. 20. pg 15: "Talish is the name of the son Japhet, the son of Noah (on whom be the peace of God), from him the name was given to a tribe in Gilan and from that tribe the country was called Talishistan. The Arabs write the name as Talish طالش".
- James Minahan. “One Europe , Many Nations: A Historical Dictionary of European National Groups By James Minahan Greenwood Press, 2000. pg 673-676.”