The Oberbergischer Kreis (Kölsch: Boverbärjische Kreiß) is a Kreis (district) in the state of North Rhine-Westphalia, Germany. Neighboring districts are Ennepe-Ruhr, Märkischer Kreis, Olpe, Altenkirchen, Rhein-Sieg, Rheinisch-Bergischer Kreis, and the urban districts Remscheid and Wuppertal.

The district was named after the region known as Bergisches Land, which belonged to the County of Berg for most of the medieval era. What is called Oberbergisch ('upper Bergian') lies in the southeast of that earldom. By 1740, descriptions of the area distinguished between Niederbergisch, which was north of the river Wupper, and Oberbergisch to its south.

In 1816, after the entire Rhineland was annexed to Prussia, the districts of Waldbröl, Homburg, Gimborn, Wipperfürth, and Lennep were created within the area now covered by the district. In 1825 the districts Gimborn and Homburg were merged into the district Gummersbach. In 1932 it was merged with the district of Waldbröl, and the region became known as Oberbergischer Kreis. The restructuring of 1969/75 created the current boundaries of the district.

The Oberbergischer Kreis covers the hills west of the Sauerland and north of the Westerwald. It constitutes the eastern part of the Bergisches Land nature reserve. Situated at an altitude of 100–520 meters above sea level, it is rich in wood and water (numbering ten artificial lakes) and thus a recreational area for citizens from Cologne, the Ruhr area and the Netherlands.

The prevailing rock is greywacke, which was and in places still is mined in large stone quarries.

The coat of arms is a combination of the heraldic signs of the territories the district belonged to. The red-white bar in the top symbolizes the County of Mark and the lion that of Berg. Homburg Castle (near Nümbrecht) was the seat of the Princes of Sayn-Wittgenstein-Berleburg.

The district's economy is marked by small and middle-sized industry, particularly in the areas of plastic and metal processing.

• The so-called "colored churches" (with medieval wall and cover paintings) are known nationally
• Stalactite cave in Wiehl
• Rhenish industry museum in Engelskirchen
• House Dahl
• Open-air museum in Lindlar
• Gimborn Castle
• Homburg Castle
• Hückeswagen Castle and the historical part of Hückeswagen
• Ehreshoven Castle
• Denklingen Castle