Stryisko-Sians'ka Verkhovyna (Ukrainian: Стри́йсько-Ся́нська Верхови́на, Stryi-San Highland) is a part of Eastern Beskids within Sambir and Stryi Raions, Lviv Oblast.
Stryisko-Sians'ka Verkhovyna is part of the Eastern Carpathians and is located in the upper reaches of rivers Opir River, Stryi River and San River.
There are protected areas within the territory: Nadsianskyi Regional Landscape Park, zakazniks Pikui Reserve and Berdo Reserve .