Paechtown is a historic locality in the Adelaide Hills of South Australia.

It is now on the southern side of the South Eastern Freeway almost opposite Hahndorf.

Johann Friedrich Wilhelm Paech had bought thirteen 80-acre sections, named Friedrichstadt, with the name particularly applied to a subdivision of section 3913, Hundred of Kuitpo.

Paechtown is named for another early landowner, Christian Paech (unrelated to Johann Friedrich).

[4] There are a number of historic German-style half-timbered houses in the village.