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. The airport itself is part of Baden Airpark, a business park with numerous other tenants.