Ems-Oriental (, "Eastern Ems"; , ) was a department of the First French Empire in present-day Germany. It was formed in 1810, when the Kingdom of Holland was annexed by France. Its territory is part of the present-day German region of East Frisia in Lower Saxony. Its capital was Aurich. The department was subdivided into the following arrondissements and cantons (situation in 1812):Almanach Impérial an bissextil MDCCCXII, p. 398, accessed in Gallica 24 July 2013

Aurich, cantons: Aurich, Berum, Norden and Timmel. Emden, cantons: Emden, Leer, Oldersum, Pewsum and Stickhausen. Jever, cantons: Esens, Hooksiel, Jever, Rüstringen and Wittmund.

Its population in 1812 was 128,200.

After Napoleon was defeated in 1814, the department became part of the Kingdom of Hanover.

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