| 100% | VYATKA | 6 | River in Russia, a tributary of the Kama River upon which Kotelnich stands |
| 64% | VITIM | 5 | Russian river, a tributary of the Lena, upon which Bodaybo, Irkutsk, stands |
| 60% | PLATTE | 6 | — River, tributary of the Missouri in Nebraska, US, upon which Fremont stands |
| 60% | DERWENT | 7 | Tributary of the River Trent upon which Derby stands |
| 60% | WHARFE | 6 | Tributary of the River Ouse in West and North Yorkshire upon which Ilkley stands |
| 59% | PLATTE | 6 | — River, tributary of the Missouri in Nebraska, US, upon which Lexington and Fremont stand |
| 59% | KAMA | 4 | Tributary of the Volga River upon which Perm and Solikamsk stand |
| 52% | MARNE | 5 | River in France which is a tributary of the Seine |
| 49% | PASHA | 5 | Tributary of the Svir River in NW Russia |
| 49% | RUHR | 4 | River in Germany, a tributary of the Rhine |
| 49% | IRTYSH | 6 | Main tributary of the Ob River in Russia |
| 48% | WHOTHEHELLKNOWS | 15 | Left tributary of the Vitim River in Irkutsk Oblast, Russia |
| 47% | RHONE | 5 | River rising in the Swiss Alps upon which Avignon, France, stands |
| 46% | EBOLA | 5 | River in the Democratic Republic of the Congo after which a severe infectious viral disease is named |
| 45% | KAMA | 4 | Russian river upon which the cities of Perm and Solikamsk stand |
| 45% | NAN | 3 | River in Thailand which is also the name of a "Game of Thrones" character |
| 45% | WABASH | 6 | River of the US upon which Terre Haute, Indiana, stands |
| 45% | KUBAN | 5 | Russian river upon which the cities of Armavir and Temryuk, Krasnodar Krai, stand |
| 44% | REDDEER | 7 | City in S Alberta, Canada, on a major tributary of the South Saskatchewan River |
| 43% | ANGARA | 6 | River in Siberia flowing from Lake Baikal to the Yenisei River upon which Irkutsk stands |
| 42% | AVON | 4 | Big name in cosmetics which is also the name of a river in England |
| 42% | ISAR | 4 | Munich's river that is a tributary of the Danube |
| 42% | GUANABARA | 9 | — Bay, deep inlet of the Atlantic Ocean in Brazil upon which Rio de Janeiro stands |
| 42% | TICINO | 6 | Canton of Switzerland named after a tributary of the Po River |
| 42% | POLTAVA | 7 | City in Ukraine on the Vorskla River; site of a 1709 battle between Russia and Sweden |
| 41% | ZUNIS | 5 | Dwellers along a tributary of the Little Colorado River |
| 40% | PEEBLES | 7 | Town in SE Scotland on the banks of the River Tweed on the edge of which stands Neidpath Castle |
| 40% | ASTRAKHAN | 9 | City in Russia on the delta of the Volga River associated with a type of black or grey fur |
| 40% | ISAR | 4 | River rising in Austria upon which Munich stands |
| 40% | ALGOA | 5 | — Bay, arm of the Indian Ocean upon which Port Elizabeth, South Africa, stands |