| Conflict: | Siege of Nagapatnam |
| Partof: | Dutch-Indian conflicts |
| Caption: | Action of 12–17 January 1640 |
| Date: | July 1658 |
| Place: | Nagapattinam, India |
| Result: | Dutch victory |
| Combatant1: | Thanjavur Nayak kingdom |
| Combatant2: | Dutch Republic |
| Commander1: | Unknown |
| Commander2: | Rijckloff van Goens |
| Strength1: | 10,000 soldiers |
| Strength2: | 400 soldiers |
| Casualties1: | 400 dead |
| Casualties2: | none |
Following a joint military endeavor by the Dutch and Tanjore forces, wherein they laid siege to the Portuguese fortress of Nagapatnam, the Portuguese eventually capitulated. Subsequently, a contingent of 400 Dutch soldiers assumed control of the fortress, effectively impeding the advance of the Tanjore army. Frustrated by this turn of events, the Tanjore forces attempted to reinitiate the siege with their own 10,000-strong military contingent.[1] In an unforeseen twist, the Dutch clandestinely massacred a portion of the Tanjore army, prompting the leader of the Tanjore forces to recognize the need for a retreat. This event highlighted the complex dynamics and strategic maneuvering that characterized this historical confrontation.[2]