| 100% | AARE | 4 | River known anciently as Obringa |
| 66% | AARE | 4 | River known in ancient times as Obringa |
| 66% | AARE | 4 | River known to the ancients as Obringa |
| 53% | ACRE | 4 | Mediterranean city known anciently as Ptolemaïs |
| 53% | DEADSEA | 7 | Place known anciently as Lacus Asphaltites |
| 50% | URAL | 4 | River known as the Zhayyq in Kazakhstan |
| 47% | CONGO | 5 | River also known as the Zaire |
| 45% | URAL | 4 | 1,575-mile river known to some locals as the Zhayyq |
| 44% | KINSHASA | 8 | Congo River city once known as Léopoldville |
| 44% | AMU | 3 | Asia's ___ Darya River (historically known as Oxus) |
| 44% | SEVENCARDSTUD | 13 | Poker variety also known as "Down the River" |
| 44% | OXUS | 4 | Ancient river now known as the Amu Darya |
| 43% | PERM | 4 | Port in Russia on the Kama River known as Molotov from 1940-62 |
| 41% | FITZROY | 7 | River in Western Australia also known as Raparapa that flows into King Sound |
| 40% | VOLGOGRAD | 9 | City on the Volga River, Russia, known as Stalingrad from 1925-61 |
| 39% | PUTUMAYO | 8 | River forming most of the border of Colombia with Peru also known as the Rio Ica |
| 39% | PUTUMAYO | 8 | River also known as the Rio Ica forming most of the border of Colombia with Peru |
| 38% | RUHR | 4 | India's Damodar River Valley, site of several dams, known as "the ___ of India" |
| 36% | ARNO | 4 | River known for disastrous floods |
| 36% | SEINE | 5 | River known for its banks |
| 35% | NEE | 3 | Known as |
| 35% | NAMED | 5 | Known as |
| 34% | NEE | 3 | Known formerly as |
| 34% | LENA | 4 | River known for the goldfields in its basin |
| 34% | ARNO | 4 | European river known for disastrous floods |
| 34% | LASVEGAS | 8 | Known as Sin City |
| 33% | ALSO | 4 | __ known as; aka |
| 33% | ALSO | 4 | ___ known as (AKA) |
| 33% | INON | 4 | Knowing, as a secret |
| 33% | INON | 4 | Knowing, as something private |