Muotathal is a village and a municipality in Schwyz District in the canton of Schwyz in Switzerland. The eponymous valley, the Muotatal, is formed by the Muota, which joins Lake Lucerne at Brunnen.
Muotathal is first mentioned in 1246 as Muthathal and Mutetal.
In 1799, during Suvorov's Swiss campaign (part of War of the Second Coalition), a numerically smaller Russian rearguard fought the French troops here in the Muotatal, inflicting a heavy defeat on them, thus saving the Imperial Russian Army from possible destruction.
The village is located in the valley of the river Muota, the Muotatal, with which it shares the name. The municipality is located in a series of valleys on the eastern edge of the canton, on the borders with the cantons of Uri and Glarus. It is the 10th largest municipality area-wise in Switzerland. It consists of the hamlet Ried, village sections of Schachen, Wil, Hinterthal (had its own post office since 1896, though it has now grown together with Schachen), and the hamlet Bisisthal in the Bisistal further upstream of the Muota. It also includes a number of alps (alpine pastures) including Glattalp, Toralp, Charetalp and Goldplangg.
The municipality Muotathal has an area of . Of this area, 32.8% is used for agricultural purposes, while 22% is forested. Of the rest of the land, 1% is settled (buildings or roads) and the remainder (44.2%) is non-productive (rivers, glaciers or mountains).
The municipality includes the entry site of the Hölloch, which at over 200 km is the longest cave in Switzerland, and currently the second-longest in Europe.
Muotathal has a population (as of ) of . , 5.2% of the population was made up of foreign nationals. Over the last 10 years the population has grown at a rate of 0.3%. Most of the population () speaks German (96.5%), with Albanian being second most common ( 2.5%) and Macedonian being third ( 0.3%).
the gender distribution of the population was 52.3% male and 47.7% female. The age distribution, , in Muotathal is; 1,069 people or 30.5% of the population is between 0 and 19.