The Margraviate of Baden-Baden was an early modern southwest German territory within the Holy Roman Empire. It was created in 1535 along with the Margraviate of Baden-Durlach as a result of the division of the Margraviate of Baden. Its territory consisted of a core area on the middle stretch of the Upper Rhine around the capital city of Baden, as well as lordships on the Moselle and Nahe.

The Margraviate of Baden-Durlach was an early modern territory of the Holy Roman Empire, in the upper Rhine valley, which existed from 1535 to 1771. It was formed when the Margraviate of Baden was split between the sons of Margrave Christopher I and was named for its capital, Durlach. The other half of the territory became the Margraviate of Baden-Baden, located between the two halves of Baden-Durlach. Baden-Durlach became Lutheran during the Protestant Reformation, unlike Baden-Baden, which remained Catholic. Baden-Durlach occupied Baden-Baden from 1594 to 1622, but was driven out after being defeated at the Battle of Wimpfen, during the Thirty Years' War (1618–1648). The territory was ravaged during the Nine Years' War (1688–1697). Following the extinction of the Baden-Baden line in 1771, the Baden-Durlach inherited their territories and reunited the Margraviate of Baden. The reunified territory was caught up in the French Revolutionary and Napoleonic Wars, emerging in 1806 as the Grand Duchy of Baden.