Roitham am Traunfall is a municipality in the district of Gmunden, in the Austrian state of Upper Austria. It lies in the Traunviertel region of the country, within the Traun river valley.
The municipality takes part of its name from the Traunfall, a waterfall on the Traun river located near the village. The Traunfall is among the most notable natural features of the area and has long been a landmark of the locality.
As a municipality, Roitham am Traunfall is one of the communities that make up the district of Gmunden, which lies in the south-central part of Upper Austria.