The Ancient Order of Druids (AOD) is a fraternal organization founded in London, England in 1781 that still operates to this day.

It is the earliest known English group to be founded based upon the iconography of the ancient druids, who were priest-like figures in Iron Age Celtic paganism.

As such, the Order is an early influence upon the development of the Neo-druidic movement, however it differs from most contemporary Neo-druidic groups in that it does not hold to a Neopagan religion, and is "not a religious organisation—n fact any discussion on religion or politics is forbidden within the lodge rooms"

Instead its members are expected "to preserve and practise the main principles attributed to the early Druids, particularly those of justice, benevolence and friendship."