Western Rus
Western Rus' may refer to:
- western regions of Kievan Rus', including:
- Halychian Rus', an East Slavic medieval state, centered in Halych
 - Volhynian Rus', an East Slavic medieval state, centered in Volhynia
 - Halych-Volhynian Rus', an East Slavic medieval state, uniting Halych and Volhynia
 - Kingdom of Rus', an East Slavic medieval kingdom (Galicia-Volhynia)
 - Turovian Rus', an East Slavic medieval state, centered in Turov
 - Polotskian Rus', an East Slavic medieval state, centered in Polotsk
 
 
- several Slavic historical regions, including:
- White Rus', an East Slavic historical region
 - Black Rus', an East Slavic historical region
 - Red Rus', an East Slavic historical region
 - Carpathian Rus', a historical region inhabited mostly by Rusyns (Rusynia)