| Conflict: | Siege of Bautzen |
| Partof: | German–Polish War Crisis of the Piast dynasty |
| Date: | 1029 |
| Place: | Bautzen, Kingdom of Poland |
| Result: | Polish victory |
| Combatant1: | Kingdom of Poland |
| Combatant2: | Holy Roman Empire |
| Commander1: | Mieszko II Lambert |
| Commander2: | Conrad II |
The siege of Bautzen was a siege of city of Bautzen, Kingdom of Poland that took place in 1029 during the German–Polish War between 1028 and 1031. Following the raid of Saxony organised by king of Poland, Mieszko II Lambert, Conrad II, the emperor of the Holy Roman Empire, had attacked Poland and organised the siege of the city. Despite heavy casualties, Polish forces managed to defeat the attackers, and Imperial forces had retreated.[1]