Plattenhardt is a former municipality in the Esslingen district, in Baden-Württemberg, Germany.
In 1975 it was merged with the municipalities Bernhausen, Bonlanden, Sielmingen and Harthausen to form the new town Filderstadt.
Plattenhardt is today a quarter of Filderstadt, formally named Filderstadt-Plattenhardt.
It has 8,482 inhabitants and is located 27 km from Stuttgart.
This Esslingen district location article is a stub.