Sielmingen is a former municipality in the Esslingen district, in Baden-Württemberg, Germany.
It was first recorded in year 1275 as Sygehelmingen.
In 1975 it was merged with the municipalities Bernhausen, Bonlanden, Plattenhardt and Harthausen to form the new town Filderstadt.
Sielmingen is today a quartier of that town, formally named Filderstadt-Sielmingen.
This Esslingen district location article is a stub.