Ulster (river)

{{short description|River in Germany}}

{{Infobox river

| name = Ulster

| image =

| image_caption =

| source1_location = Rhön Mountains

| source1_coordinates = {{coord|50|50|32|N|9|59|7|E}}

| mouth_location = Werra

| mouth_coordinates = {{coord|50|50|36|N|9|59|5|E|display=inline,title}}

| progression = {{RWerra}}

| subdivision_type1 = Country

| subdivision_name1 = Germany

| subdivision_type2 = States

| subdivision_name2 = Hesse and Thuringia

| length = {{convert|57.3|km|abbr=on}} {{GeoQuelle|DE-HE|WRRL}}

| source1_elevation =

| discharge1_avg =

| basin_size = {{convert|422|km2|abbr=on}} {{GeoQuelle|DE-HE|WRRL}}

}}

The Ulster is a {{convert|57|km|mi|adj=mid|-long}} river in Central Germany that flows through the states of Thuringia and Hesse.

The river originates in the Rhön Mountains, near the town of Ehrenberg. It then flows primarily in a northerly direction, through the towns of Hilders, Tann, Geisa, and Unterbreizbach. It flows from the left into the Werre River in Philippsthal.