Look up Ruthenia in Wiktionary, the free dictionary.
Ruthenia may refer to:
- Ruthenia, a name applied to various East Slavic lands
- Red Ruthenia, an East Slavic historical region
- Black Ruthenia, an East Slavic historical region
- White Ruthenia, an East Slavic historical region
- Carpathian Ruthenia, an East Slavic region (Rusynia) on the both sides of Carpathian Mountains
- Inner Carpathian Ruthenia, sub-region of Carpathian Ruthenia on the inner side of Carpathian Mountains
- Outer Carpathian Ruthenia, sub-region of Carpathian Ruthenia on the outer side of Carpathian Mountains
- Subcarpathian Ruthenia, relative term, most commonly used for the Inner Carpathian Ruthenia
- Ciscarpathian Ruthenia, relative term, most commonly used for the Outer Carpathian Ruthenia
- Transcarpathian Ruthenia, relative term, used in different geographical contexts, depending on a point of observation
- Kingdom of Ruthenia, an East Slavic kingdom in the 13th century
- Voivodeship of Ruthenia, a province of the early modern Kingdom of Poland
- Grand Principality of Ruthenia (1658), a proposed state (1658)
- Ruthenium oxide, via the *-ia terminology for metal oxides
