| Conflict: | Battle of Hummelshof |
| Partof: | the Great Northern War |
| Date: | July 18, 1702 (O.S.) July 19, 1702 (Swedish calendar) July 29, 1702 (N.S.) |
| Place: | Hummelshof, Swedish Livonia (present-day Hummuli, Estonia) |
| Result: | Russian victory |
| Combatant1: |  Swedish Empire |
| Combatant2: | Tsardom of Russia |
| Commander1: | Wolmar Anton von Schlippenbach |
| Commander2: | Boris Sheremetev |
| Strength1: | 6,000 men[1] 17 artillery pieces[2] |
| Strength2: | 20,000[3] –23,969 men 24 artillery pieces |
| Casualties1: | 2,000 killed and over 1,000 wounded and captured or 5,500 killed and wounded, all cannons |
| Casualties2: | 1,000[4] –4,000 killed and wounded |
Battle of Hummelshof took place on July 19, 1702 (O.S.) near the small town Hummelshof in Swedish Livonia (present-day Estonia). It was the second significant Russian victory in the Great Northern War in which a Russian army under Boris Sheremetev attacked a much smaller force under Wolmar Anton von Schlippenbach and defeated it after experiencing similar casualties to the Swedes. This was a final blow to the Swedish force defending Livonia and the defeat left it fully open to Russian attacks.