Karl-Heinz "Charly" Willius (5 November 1919 – 8 April 1944) was a German Luftwaffe military aviator and fighter ace during World War II.

Flying with this wing, Willius claimed his first aerial victory on 18 August 1940 on the Western Front over a Royal Air Force fighter aircraft.

Elements of JG 26 were moved to the Eastern Front in early 1943 where Willius claimed nine Soviet aircraft destroyed.

He was killed in action on 8 April 1944, shot down by a United States Army Air Forces fighter.

The Staffel was subordinated to I. Gruppe (1st group) of JG 20 which was commanded by Hauptmann Hannes Trautloft.

[2] The Gruppe was equipped with the Messerschmitt Bf 109 E and fought in the Battle of France under the control of Jagdgeschwader 51 (JG 51—51st Fighter Wing).

[5] Unteroffizier Willius participated in the invasion of Russia in June 1941, and claimed his second victory on the opening day of Operation Barbarossa, when he downed a SB-2 bomber.

91 Squadron RAF flown by Flight Lieutenant Patrick Peter Coleman "Paddy" Barthropp who bailed out and was taken prisoner.

[11] On 16 January 1943, Feldwebel Willius was transferred, serving as an instructor with a fighter pilot school.

On 6 June, the Gruppe started relocating back to the Western Front, at first to Warsaw, and then to Brandenburg-Briest and Rheine.

[19] That day, he shot down a Boeing B-17 Flying Fortress near Koblenz on a VIII Bomber Command mission to Solingen.

Gruppe of JG 26 claimed seven aerial victories, including a B-17 shot down by Willius near Soissons.

[21] On 11 January 1944, VIII Bomber Command attacked the German aircraft industry at Braunschweig, Oschersleben and Halberstadt.

That day, Willius was credited with his third aerial victory in Defense of the Reich, claiming a 306th Bombardment Group B-17 bomber shot down near Deventer.

On 24 February, during "Big Week" or Operation Argument, Willius shot down a Consolidated B-24 Liberator bomber on a mission to bomb the German aircraft industry.

[25] On 8 April 1944, Willius made a head-on attack against a formation of B-24 bombers of the 44th Bombardment Group, downing one in flames for his 50th and last aerial victory.

His body was not recovered until 23 October 1967, found in his aircraft excavated from a Dutch polder near Kamperzeedijk.