The Capture of Turtle Bay Depot was a military raid that took place in the early American Revolutionary War on July 20, 1775. The raid was on Turtle Bay Depot, a British magazine and storehouse.
| Conflict: | Capture of Turtle Bay Depot |
| Place: | Turtle Bay, Manhattan |
| Date: | July 20, 1775 |
| Result: | American Victory |
| Combatant1: | Sons of Liberty |
| Commander1: | Marinus Willett John Lamb (general) Isaac Sears Alexander McDougall |
| Commander2: | None |
On the night of July 20, 1775, a raid, conducted by the Sons of Liberty and led by Marinus Willett, John Lamb, Isaac Sears, and Alexander McDougall, attacked the Turtle Bay Depot in Manhattan, New York. The raiders also seized the British ship Asia.
The Sons of Liberty then sent the stores to Boston, patriots on Lake Champlain, and Fort Ticonderoga. After the capture of Turtle Bay Depot, the patriots established Turtle Bay Redoubt, an earthwork that was located on the site that would become the Headquarters of the United Nations.