| Izyaslav Davydovich | |
| Succession: | Prince of Chernigov |
| Reign1: | 1151–1154 |
| Predecessor1: | Vladimir Davydovich |
| Successor1: | Sviatoslav Olgovich |
| Succession2: | Grand Prince of Kiev (first) |
| Reign2: | late 1154 – March 1155 |
| Predecessor2: | Rostislav I of Kiev |
| Successor2: | Yuri Dolgorukiy |
| Succession3: | Grand Prince of Kiev (second) |
| Reign3: | 19 May 1157 – autumn 1158 |
| Predecessor3: | Yuri Dolgorukiy |
| Successor3: | Mstislav II of Kiev |
| Succession4: | Grand Prince of Kiev (third) |
| Reign4: | 12 February – 6 March 1161 |
| Predecessor4: | Rostislav I of Kiev |
| Successor4: | Rostislav I of Kiev |
| House: | Sviatoslavichi |
| Father: | Davyd Sviatoslavich |
| Birth Date: | ? |
| Death Date: | 1161 |
| Death Place: | Chernigov |
Izyaslav III Davydovich (died 1161) was Prince of Chernigov and Grand Prince of Kiev (1154–1155; 1157–1158; 1161).[1] [2] [3] He was the son of Davyd Sviatoslavich of Chernigov.