Enno Rudolph Brenneysen (26 October 1669 in Esens – 22 September 1734 in Aurich) was Chancellor of East Friesland under Prince George Albert.
During the reign of George Albert, he led a relatively unrestricted government and tried to establish in East Frisia a system of religiously inspired absolutism.
Among Brenneysen's merits are his book on the Frisian history and a constitution, written in the early 18th century.
Emden proposed a treaty in which the city's privileges and economic position were guaranteed and in return the Estates would recognize Prussia's claim on East Frisia.
The Prussian claim was additionally based on a decision made by Emperor Leopold I in 1694, acknowledging Prussias right to inherit East Frisia in the event of a lack of a male heir.