Frutz
{{More citations needed|date=February 2024}}
{{Infobox river
| name = Frutz
| image = Frutz1b.jpg
| image_caption = River Frutz shortly before the confluence with the Rhine (photographed from the bicycle bridge)
| subdivision_type1 = Country
| subdivision_name1 = Austria
| subdivision_type2 = State
| subdivision_name2 = Vorarlberg
| source1_location = Frutz Alpine shieling
| mouth_location = Rhine
| mouth_coordinates = {{coord|47|19|03|N|9|35|21|E|region:AT-8_type:river_source:dewiki|display=it}}
| progression = {{RRhine}}
| length = ~ {{convert|19|km|abbr=on}}
| source1_elevation = {{convert|1,800|m|abbr=on}}
| mouth_elevation =
| discharge1_avg =
| basin_size =
}}
The Frutz is a river of Vorarlberg, Austria, a tributary of the Rhine.
The Frutz is {{cvt|19|km}} long. Its source is in the Frutz Alpine shieling. It flows in western direction through the valley {{ill|Laternsertal|ceb|Laternser Tal|de|Laternsertal|sv|Laternser Tal}} in the area of Feldkirch to the Rhine. At Rankweil, the river divides into a side and main arm.[https://books.google.com/books?id=vJc6AQAAIAAJ&dq=rankweil%20Frutz&pg=PA206 The Eastern Alps, Including the Bavarian Highlands, Tyrol, Salzburg, Upper and Lower Austria, Styria, Carinthia, and Carniola: Handbook for Travellers]. K. Baedeker, 1891. 206. The smaller one has an own name called {{lang|de|Ehbach}}. Both arms discharge separately at Koblach into the Rhine.
Bigger locations at the Frutz are Sulz, Rankweil and Koblach.