Ulster
Location
Country	Germany
States	Hesse and Thuringia
Physical characteristics
Source
• location	Rhön Mountains
• coordinates	50°50′32″N 9°59′7″E / 50.84222°N 9.98528°E / 50.84222; 9.98528
Mouth
• location	Werra
• coordinates	50°50′36″N 9°59′5″E / 50.84333°N 9.98472°E / 50.84333; 9.98472
Length	57.3 km (35.6 mi) [1]
Basin size	422 km2 (163 sq mi) [1]
Basin features
Progression	Werra→ Weser→ North Sea

The Ulster is a 57-kilometre-long (35 mi) river in Thuringia and Hesse, Germany.

The Ulster's source is in the Rhön Mountains, near Ehrenberg. The Ulster flows generally north through the towns of Hilders, Tann, Geisa and Unterbreizbach. It flows from the left into the Werra in Philippsthal.