Vydra River
                    General data
- Name: Vydra River
 - Water system: Elbe
 - Water type: River
 - Progression: Otava River -> Vltava -> Elbe -> North Sea -> Atlantic Ocean -> Planet Earth
 - Climates: Continental
 - Continents: Europe
 - Countries: Czech Republic
 
The Vydra is a river in the Czech Republic. It flows through the Plzeň Region. It is the upper course of the Otava, but usually is considered a separate river. Until its confluence with the Kremelna, when it further continues as the Otava, the Vydra is 23.7 km long.