Ottensheim is a municipality in the district of Urfahr-Umgebung, in the Austrian state of Upper Austria. It lies in the Mühlviertel region on the north bank of the Danube, roughly ten kilometres west of Linz.
The town is best known for the Regattastrecke Ottensheim, its rowing venue on the Danube. The course has hosted numerous international rowing competitions, including World Championships, World U23 Championships, World Junior Championships and World Cup events.