| Conflict: | Siege of Fort Massachusetts |
| Partof: | King George's War |
| Date: | 19–20 August 1746 |
| Place: | North Adams, Massachusetts |
| Result: | French-Indian victory |
| Combatant1: | Indian tribes |
| Combatant2: | Massachusetts |
| Commander1: | François-Pierre Rigaud de Vaudreuil |
| Commander2: | John Hawks[1] |
| Strength1: | 1,000 |
| Strength2: | 22 men, 3 women, 5 children |
| Casualties1: | 1 killed, 16 wounded |
| Casualties2: | 30 prisoners, 14 survived |
The siege of Fort Massachusetts (19-20 August 1746) was a successful siege of Fort Massachusetts (in present-day North Adams, Massachusetts) by a mixed force of more than 1,000 French and Native Americans from New France. The fort, garrisoned by a disease-weakened militia force from the Province of Massachusetts Bay, surrendered after its supplies of ammunition and gunpowder were depleted. Thirty prisoners were taken and transported back to Quebec, where about half of them died in captivity.[2]