Oberleutnant Karl Patzelt (1893–1918) was an Austro-Hungarian World War I flying ace credited with five aerial victories.

Trained and posted as a technical officer for Flik 29J in Romania, he volunteered to fly as an observer with Andreas Dombrowski.

On their missions, Patzelt would benefit from Dombrowski's tuition as a pilot, while downing two enemy aircraft with the observer's gun.

In actuality, Patzelt was born in Craiova, Romania, and his legal domicile was the same as his father's, Mladá Boleslav, Bohemia.

[2] When World War I began, Patzelt was an officer in the 22nd Schützen Regiment on the Russian Front.

[citation needed] On 23 March 1915, he received a rare early, out-of-turn promotion to Oberleutnant (First Lieutenant).

While flying as an observer, on 5 February 1917, and again on 21 June, he scored aerial victories while being piloted by Andreas Dombrowski.

While with Flik 42J, Patzelt was granted his highest honor, the Order of the Iron Crown, Third Class with War Decoration and Swords.

[4][5] Karl Patzelt was killed in action on 4 May when his Albatros D.III was shot down during a skirmish over Montello, a hill in the Treviso province of Italy.