Wallhausen is a municipality in the district of Bad Kreuznach in Rhineland-Palatinate, in western Germany.

The town is known for quaint, family-operated, wineries and its connectivity to walking paths around the Nahe wine region.

Wallhausen lies 14km northwest of Bad Kreuznach in the vicinity of the Nahe Valley, on the edge of the Soonwalds.

Nearby villages include Sankt Katharinen, Spabrücken, Braunweiler and Sommerloch.

Wallhausen has significant activity in the wine business, including 226 hectares (558 acres) of vines as of 2007.