The longest river in Europe is the Volga River, and it is about 3,531 km long.

Quick Scoop

  • River name: Volga River.
  • Continent: Europe (flowing entirely through Russia).
  • Length: Approximately 3,531 km (about 2,194 miles).
  • Mouth: Flows into the Caspian Sea.

Many geography quizzes and general knowledge tests point to the Volga as the definitive “longest river in Europe,” so if you see that question pop up in a forum or exam, Volga + 3,531 km is the combo to remember.

TL;DR: Volga River, about 3,531 km long, is the longest river in Europe.

Information gathered from public forums or data available on the internet and portrayed here.