1709 in piracy


 * April - Privateer Woodes Rogers and the ships Duke and Duchess raid Guayaquil in the Viceroyalty of Peru.
 * December 22 - Rogers captures the Desengaño, one of the two Manila galleons, off Cabo San Lucas. Rogers is wounded.
 * December 25 - Rogers's Duke and Duchess attack the Begoña, the larger of the two Manila galleons, and are repulsed with heavy losses.