Walter Sigel (12 January 1906 – 8 May 1944) was a German air officer during World War II.

Sigel died on 8 May 1944 after crashing his aircraft into Trondheim Fjord.

Sigel was the commanding officer of Sturzkampfgeschwader 76 during the Junkers Ju 87 dive bombing demonstration at Neuhammer, present-day Świętoszów, Poland, on 15 August 1939.

Observing the demonstration were the senior Luftwaffe commanders, including Generals Hugo Sperrle, Bruno Loerzer, and Wolfram von Richthofen.

While Sigel managed to just barely pull out in time, 13 other Ju 87 crews crashed to their death.