Karlsruhe/Baden-Baden Airport is the international airport of Karlsruhe, the third-largest city in the German state of Baden-Württemberg, and also serves the spa town of Baden-Baden. It is the state's second-largest airport after Stuttgart Airport, and the 13th-largest in Germany with 1,731,055 passengers as of 2023 and mostly serves low-cost and leisure flights.

Karlsruhe is the third-largest city of the German state of Baden-Württemberg, after its capital Stuttgart and Mannheim, and the 22nd-largest city in the nation, with 308,436 inhabitants. It is also a former capital of Baden, a historic region named after Hohenbaden Castle in the city of Baden-Baden. Located on the right bank of the Rhine near the French border, between the Mannheim-Ludwigshafen conurbation to the north and Strasbourg to the south, Karlsruhe is Germany's legal center, being home to the Federal Constitutional Court, the Federal Court of Justice and the Public Prosecutor General.