Wakendorf I is a municipality in the district of Segeberg, in Schleswig-Holstein, Germany.

The name "Wakendorf I" was given in Prussian times, in order to distinguish it from another municipality 20 km to the southwest, also called Wakendorf.

Wakendorf I lies about 20 km south-southeast of the district capital Bad Segeberg and about six kilometers north of Bad Oldesloe near the Trave.

It has a small train station on the Neumünster–Bad Oldesloe railway.

This Segeberg location article is a stub.