Rus may refer to: in politics:
- Kievan Rus', a medieval state centred on Kiev from 880 to the middle of the twelfth century
- Rural Utilities Service, a part of the USDA
- Rus, one of the brothers Lech, Czech and Rus who, according to legend founded the three slavic nations
- Rus' Khaganate, a polity in eastern Europe eighth and ninth centuries
- Rus (special forces), a unit of interior troops of the Russian Federation
in culture:
- Rus, a nickname for the Gotland Pony
- RUS, the ISO 639-2 code for the Russian language
- RUS, a rodent of unusual size from the book and movie The Princess Bride
- Rus (1903), a Russian newspaper spasmodically from 1903 to 1908
- Rus (album), the first studio recording by the Russian folk metal band Arkona
