The Badhyz State Nature Reserve (Turkmen: Bathyz goraghanasy) is a protected area (zapovednik) in south-western Turkmenistan that was established in 1941 and extends over 877 km2 (339 sq mi) in the Mary and Akhal Provinces.

It is located south of the Karakum Desert, and the Tejen River forms its western border.

[citation needed] It also incorporates three wildlife sanctuaries (zakaznik), which were established in 1956: The Badhyz State Nature Reserve is an important stronghold of the Asiatic wild ass (Equus hemionus kulan).

Predators include red fox, Persian leopard, striped hyena, grey wolf, and Asiatic wildcat.

[3] It has not been recorded in the region since the 1960s, and dispersal of individuals from neighbouring Iran is obstructed by the fenced border between the two countries.