| Conflict: | Siege of Ambur |
| Date: | 10 Nov. – 7 Dec. 1767 |
| Place: | Ambur, Tamil Nadu, India |
| Result: | Victory for Local troops and EIC |
| Combatant1: | East India Company
|
| Combatant2: | Mysore state |
| Commander1: | Captain Calvert |
| Commander2: | Hyder Ali |
The siege of Ambur (10 November – 7 December 1767) was conducted by a combined force of Mysorean and Hyderabadi troops under the command of Hyder Ali against the town of Ambur in southern India during the First Anglo-Mysore War. The town was successfully defended by a garrison of local troops and a small force of British East India Company troops under the command of Captain Calvert.[1]