Althütte is a municipality of the Rems-Murr district in Baden-Württemberg, Germany.

The modern municipality of Althütte was formed by the merging of the villages of Althütte and Sechselberg in 1971.

The municipality (Gemeinde) of Althütte is located in the Rems-Murr district, in the German state of Baden-Württemberg. Althütte is physically located in the Murrhardt Forest, a region of the larger Swabian-Franconian Forest. Elevation above sea level in the municipal area ranges from a high of 571 meters (1,873 ft) Normalnull (NN) to a low of 339 meters (1,112 ft) NN.

Portions of the Federally protected Hörschbachschlucht and Strümpfelbach valley [de] nature reserves are located in Althütte's municipal area.

Althütte has two boroughs (Ortsteile), and 16 villages: Fautspach, Gallenhof, Glaitenhof, Hahnenhof, Hörschhof, Hörschhöfer Sägmühle, Kallenberg, Klösterle, Lutzenberg, Nonnenmühle, Rottmannsberger Sägmühle, Schlichenhöfle, Schlichenweiler, Schöllhütte, Voggenhof, and Waldenweiler. Althütte is in an mutually-beneficial municipal association [de] with the city of Backnang and the municipalities of Allmersbach im Tal, Aspach, Auenwald, Burgstetten, Kirchberg an der Murr, Oppenweiler, and Weissach im Tal.

Althütte's municipal coat of arms displays two white glassblowing pipes crossed over a field of blue. The coat of arms refers to the name Althütte and to Althütte's history of glassworking. This coat of arms was created from a proposal by the Central State Archive Stuttgart [de] in 1924.

Althütte is connected to Germany's network of roadways by its local Landesstraßen and Kreisstraßen. Local public transportation is provided by the Verkehrs- und Tarifverbund Stuttgart.

• Official website (in German)