| City | 2026 Pop. ↓ |
|---|---|
| Rostov-na-Donu | 1,145,765 |
| Ryazan | 518,124 |
| Rybinsk | 167,377 |
| Reutov | 124,118 |
| Ramenskoe | 120,424 |
| Revda | 58,627 |
| Raduzhnyy | 46,351 |
| Rasskazovo | 45,898 |
| Roslavl | 42,827 |
| Ruzaevka | 41,201 |
| Rtishchevo | 36,415 |
| Rezh | 35,961 |
| Rodniki | 23,617 |
| Rybnoe | 21,063 |
| Roshal | 20,640 |
| Ryazhsk | 19,752 |
| Raduzhnyy | 17,578 |
| Ruza | 14,876 |
| Rylsk | 14,153 |
| Rudnya | 8,327 |