Eight of the top ten European rivers flow totally or partially in Russia, which constitutes almost 40% of the continent, which in other areas has not allowed the development of equally long watercourses, if we exclude the Danube, the river in the world that touches more countries, ten.Volga is the longest river in Europe and flows from beginning to end in Russia; the first five rivers have their mouths in the south-eastern area of Europe, in two cases in the largest lake in the world, the Caspian Sea, located however in Asia.
The second watercourse in the western part of the continent, the Rhine, is less than half the length of the Danube and occupies only the 12th place, but crosses 6 countries before flowing into the North Sea.
| River | Length (km) | Length (mi) | Mouth | Countries |
| Volga (1) | 3,531 km | 2,194 mi | Caspian Sea | Russia |
| Danube (2) | 2,858 km | 1,776 mi | Black Sea | Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Romania, Bulgaria, Moldova, Ukraine |
| Ural (3) | 2,428 km | 1,509 mi | Caspian Sea | Russia, Kazakhstan |
| Dnieper | 2,201 km | 1,368 mi | Black Sea | Russia, Belarus, Ukraine |
| Don | 1,950 km | 1,212 mi | Sea of Azov | Russia |
| Pechora | 1,809 km | 1,124 mi | Barents Sea | Russia |
| Kama | 1,805 km | 1,122 mi | Volga | Russia |
| Northern Dvina (4) | 1,744 km | 1,084 mi | White Sea | Russia |
| Oka | 1,500 km | 932 mi | Volga | Russia |
| Belaya (5) | 1,430 km | 889 mi | Kama | Russia |
| Dniester | 1,370 km | 851 mi | Black Sea | Ukraine, Moldova |
| Rhine | 1,320 km | 820 mi | North Sea | Switzerland, Liechtenstein, Austria, Germany, France, Netherlands |
| Vyatka | 1,314 km | 816 mi | Kama | Russia |
| Desna | 1,130 km | 702 mi | Dnieper | Russia, Ukraine |
| Elbe | 1,094 km | 680 mi | North Sea | Czech Republic, Germany |
| Donets | 1,053 km | 654 mi | Don | Russia, Ukraine |
| Vistula | 1,022 km | 635 mi | Baltic Sea | Poland |
| Tagus | 1,007 km | 626 mi | Atlantic Ocean | Spain, Portugal |
| Loire | 1,006 km | 625 mi | Atlantic Ocean | France |
| Western Dvina (6) | 1,005 km | 624 mi | Baltic Sea | Russia, Belarus, Latvia |
| Khopyor | 979 km | 608 mi | Don | Russia |
| Tisza | 976 km | 606 mi | Danube | Ukraine, Romania, Hungary, Slovakia, Serbia |
| Sava | 947 km | 588 mi | Danube | Slovenia, Croatia, Bosnia and Herzegovina, Serbia |
| Neman | 937 km | 582 mi | Baltic Sea | Belarus, Lithuania, Russia |
| Prut | 926 km | 575 mi | Danube | Ukraine, Romania, Moldova |
| Meuse | 925 km | 575 mi | North Sea | France, Belgium, Netherlands |
| Ufa | 918 km | 570 mi | Belaya | Russia |
| Ebro | 910 km | 565 mi | Mediterranean Sea | Spain |
(1) Its source is located just 228 meters above sea level; in the last stretch it flows below sea level.
(2) It is the river that crosses the largest number of countries in the world, as many as ten, Moldova for just 570 meters.
(3) Its entire course straddles Asia and Europe, since it determines its border.
(4) It takes this name one hundred kilometers south of the confluence with the Vychegda, included in the measurement.
(5) Biggest tributary of the longest tributary of the Volga.
(6) In Latvia the river is called Daugava.