| Conflict: | Siege of Koppal |
| Partof: | the Third Anglo-Mysore War |
| Date: | 28 October 1790 – 7 April 1791 |
| Place: | Koppal, Sultanate of Mysore |
| Result: | British-Hyderabad victory |
| Combatant1: | Sultanate of Mysore |
| Combatant2: | Hyderabad British East India Company |
| Commander1: | Tipu Sultan |
| Commander2: | Mahabat Jung Hugh Montgomery |
The siege of Koppal (28 October 1790 – 7 April 1791) was conducted during the Third Anglo-Mysore War by forces of the Nizam of Hyderabad under the command of Mahabat Jung, assisted by a contingent of British East India Company forces. The siege was poorly conducted, and the garrison surrendered principally because Bangalore had fallen in February 1791. The Siege of Koppal (28 October 1790 – 7 April 1791) was conducted during the Third Anglo-Mysore War by forces of the Nizam of Hyderabad under the command of Mahabat Jung, assisted by a contingent of British East India Company forces. The siege was poorly conducted, and the garrison surrendered principally because Bangalore had fallen in February 1791.