Wehrheim is a municipality in Hesse, Germany some 30 km (20 mi) north of Frankfurt am Main.

In Wehrheim, a burying ground from the early to middle Urnfield culture (11th to 10th century BC) was discovered.

In 1895 the railway line from Bad Homburg vor der Höhe – then still called Homberg – through Friedrichsdorf to Usingen came into operation, and was extended to Weilburg a few years later, linking the community a bit more closely with the Frankfurt area, a trend that would continue in the coming century.

This is believed to have been a canting symbol since it was a military structure (Wehr is a German word for "army").

The community has at its disposal two stops, Wehrheim and Saalburg, on the Taunusbahn railway (officially called line 15 by the RMV, or Rhein-Main-Verkehrsverbund).

The Taunusheim, an orphanage established in 1943 to house war orphans, was until 1998 a home for children and youths run by the city of Frankfurt.

The Wehrheim municipal area contains 13 km of the Limes Germanicus which was declared a World Heritage Site in 2005 by UNESCO.