| Conflict: | Battle of Wischau |
| Partof: | the War of the Third Coalition |
| Date: | 28 November 1805 |
| Place: | Wischau, Moravia, present-day Czech Republic |
| Coordinates: | 49.2775°N 16.9989°W |
| Result: | Russian victory |
| Combatant1: |  French Empire |
| Combatant2: | Russian Empire |
| Commander1: | Frédéric Henri Walther Antoine Charles Louis de Lasalle |
| Commander2: | Prince Pyotr Bagration |
| Strength1: | 1,400 |
| Strength2: | 24,000 |
| Casualties1: | unclear, Imperial Eagle and Guidon (11th Dragoons) |
| Casualties2: | unclear |
The Battle of Wischau occurred on 28 November 1805 between the Russian and French armies. The conflict resulted in a minor Russian success. It followed the action at Hollabrun and Schöngrabern, and preceded the Battle of Austerlitz. The relatively easy Russian victory convinced the Third Coalition Allies that the French army would be easy to beat, having reached the end of their supply and communication lines and having suffered several losses in previous weeks of fighting.
Total: 20 squadrons, 12 guns, approximately 1400 men.
11th Dragoons lost an Imperial Eagle and a guidon during the fight.
Advanced Guard
Total: 12 battalions, 35 squadrons, and 8 sotnias, 24 guns, approximately 12,000 men.