Kiel-Holtenau Airport is a small general aviation and military airfield located in the Holtenau district of Kiel, the capital of the state of Schleswig-Holstein in northern Germany. Situated on the southern shore of the Kiel Fjord near the entrance to the Kiel Canal, it has a long history dating back to the early 20th century. The airport primarily serves general aviation, private flights, and flight training, with no scheduled commercial airline services. It is also used by German military and government aviation. Due to its limited facilities and runway constraints, it does not handle significant passenger traffic. Kiel-Holtenau is one of Germany's oldest airfields and holds historical significance, having been used during both World War I and World War II. Today it serves as a hub for local flying clubs and charter operations in the Kiel region.