Beuster (Innerste)
{{short description|River in Germany}}
{{Expand German|topic=geo|date=September 2011|Beuster (Innerste)}}
{{Infobox river
| name = Beuster
| image =
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| source1_location =
| mouth_location = Innerste
| mouth_coordinates = {{coord|52.1192|9.9797|region:DE|display=it}}
| progression = {{RInnerste}}
| subdivision_type1 = Country
| subdivision_name1 = Germany
| subdivision_type2 = State
| subdivision_name2 = Lower Saxony
| length_km = 12.5|length_ref={{GeoQuelle|DE-NI|UK}}
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Beuster is a river of Lower Saxony, Germany. It flows into the Innerste south of Hildesheim. Its total length, including its source river Warme Beuster, is {{convert|12.5|km|abbr=on}}.