The Oldenburg Münsterland (German: Oldenburger Münsterland) is the southern, predominantly Catholic portion of the former Grand Duchy of Oldenburg, now a part of Lower Saxony in Germany. Before 1803, it was part of the Prince-Bishopric of Münster (hence the name Münsterland). It comprises the modern day counties of Cloppenburg and Vechta, an area with over 600 years of shared history and tradition. Still primarily defined by its agriculture, the area claims the highest density of poultry, pork and beef farming within Germany.

Economically, Oldenburg Münsterland has a relatively low level of unemployment compared to the rest of Lower Saxony.