 | This article relies largely or entirely on a single source. (May 2023) |
| Oleg III Svyatoslavich | |
|---|---|
| Prince of Chernigov | |
| Reign | 1201/2–1204 |
| Predecessor | Igor Svyatoslavich |
| Successor | Vsevolod IV of Kiev |
| House | Olgovichi |
| Father | Sviatoslav III of Kiev |
| Mother | Maria Vasilkovna of Polotsk |
Oleg III Svyatoslavich (c. 1147–1204)[1] was a Kievan Rus' prince. His baptismal name was Feodosy.[1] He was prince of Vshchizh (1166–before 1175),[1] of Novgorod-Seversk (1200–1201),[1] and of Chernigov (1201/1202–1204).[1]