Oldenburg is an independent city in the state of Lower Saxony, Germany. The city is officially named Oldenburg to distinguish from Oldenburg in Holstein. During the French annexation in the wake of the Napoleonic war against Britain, it was also known as Le Vieux-Bourg in French. The city is at the rivers Hunte and Haaren, in the northwestern region between the cities of Bremen in the east and Groningen in the west. According to Germany's 2022 census, the city's population is 172,759.