Flieger-Division[1] (9th Air Division) was one of the primary divisions of the German Luftwaffe in World War II.
The division was founded on 1 February 1940 in Jever and initially subordinated to the Oberkommando der Luftwaffe (OBdL).
On 23 May 1940 the division was subordinated to the Luftflotte 2 and transferred to Soesterberg in July 1940.
The unit was redesignated IX.
The division led the various combat groups that had re-equipped with fighter aircraft and was subordinated to Luftflotte 10.