Armathia (Greek: Αρμάθια) is a Greek island belonging to the Dodecanese group in the eastern Aegean sea. It is part of the municipality of Kasos. In the census of 1951, there were 8 recorded inhabitants, but it has since become uninhabited. At its peak, it sustained a community of over 100 who were mainly involved in mining the rich deposits of gypsum intended for export. It is now a tourist destination for day trippers from neighbouring developed islands. An observatory attracts wildlife observers.

Armathia

Native name: Αρμάθια
View of Armathia from Kasos
GeographyCoordinates.mw-parser-output .geo-default,.mw-parser-output .geo-dms,.mw-parser-output .geo-dec{display:inline}.mw-parser-output .geo-nondefault,.mw-parser-output .geo-multi-punct,.mw-parser-output .geo-inline-hidden{display:none}.mw-parser-output .longitude,.mw-parser-output .latitude{white-space:nowrap}35°26′12″N 26°51′49″E / 35.43667°N 26.86361°E / 35.43667; 26.86361
Archipelago	Dodecanese
Administration
Greece