The Forbes Expedition was a British military campaign to capture Fort Duquesne, led by Brigadier-General John Forbes in 1758, during the French and Indian War. While advancing to the fort, the expedition built the Forbes Road. The Treaty of Easton served to cause a loss of Native American support for the French, resulting in the French destroying the fort before the expedition could arrive on November 24.

John Forbes was a Scottish professional soldier who served in the British Army from 1729 until his death in 1759.