| Conflict: | Battle of Systerbäck |
| Partof: | the Great Northern War |
| Date: | July 8, 1703 (O.S.) July 9, 1703 (Swedish calendar) July 19, 1703 (N.S.) |
| Place: | Sestra River, Russia |
| Result: | Russian victory |
| Combatant1: |  Swedish Empire |
| Combatant2: | Tsardom of Russia |
| Commander1: | Abraham Cronhjort |
| Commander2: | Boris Sheremetev Aleksandr Danilovich Menshikov |
| Strength1: | 4,000 men |
| Strength2: | 25,000 men of which 7,000–8,000 engaged |
| Casualties1: | 390 killed and wounded[1] |
| Casualties2: | 150 killed and wounded[2] |
The Battle of Systerbäck took place on July 19, 1703 near the Sestra River during the Great Northern War. The Swedish army under the command of Abraham Cronhjort had to pull back to escape encirclement of the much larger Russian force under Boris Sheremetev. The two sides estimated their losses to 390 Swedish dead and wounded and 150 Russians dead and wounded.[1]