Tennenlohe is a district of the city of Erlangen in Middle Franconia, Germany, located about 6 km south of the city centre at the motorway A 3. Tennenlohe was amalgamated into the city on July 1, 1972. It has 4,439 inhabitants (March 1, 2007).
The settlement probably originated at the end of the 12th century and is first documented in 1265. It remained a village with scattered buildings around ten larger farms until the 19th century. New residential and commercial areas grew after 1945, especially since the completion of the A 3 from Nuremberg to Frankfurt in 1964. Today Tennenlohe is the site of the innovation and founder centre Nuremberg-Erlangen-Fürth, the Fraunhofer Institute for Integrated Circuits and numerous IT-companies.
Tennenlohe features a medieval church with baroque interior from 1766-68, as well as some historic sandstone buildings.
North of Tennenlohe up to the fringes of central Erlangen and the district Bruck lies a protected forest called Brucker Lache. This is also the location of the Walderlebniszentrum Tennenlohe, a museum about the flora and fauna of the surrounding forests as well as their history and human cultivation. Next to it exists an adventure trail with many activities related to the woods. East of Tennenlohe lies another protected forest called Tennenloher Forst.