What is "dvina"

Dvina may refer to:

• Daugava River, also known as "Western Dvina", a river in Russia, Belarus, and Latvia.
• Northern Dvina, a river in northern Russia.
• R-12 Dvina, a theatre ballistic missile from the Soviet Union.
• S-75 Dvina, a surface-to-air guided missile from the Soviet Union.
• Dvinia, a Therapsid reptile