Lehenweiler is a hamlet in the municipality of Aidlingen, in the Landkreis (district) of Böblingen, in Baden-Württemberg, Germany. It lies in the landscape region called the Heckengäu.

In 1709, Eberhard Louis, Duke of Württemberg granted three favoured knights each 15 morgen - about 4 hectares (9.9 acres) - of land from the fiefdom ("Lehen") of Aidlingen. The second part of the name is "Weiler", which means "hamlet".

In the middle of the village is the old school, built in 1813, which is now used as a community centre.

There is a bus connection to Aidlingen and the town of Böblingen, approximately 12 kilometres (7.5 mi) away.