Franz Karl Reichleitner (2 December 1906 – 3 January 1944) was an Austrian member in the SS of Nazi Germany who participated in Operation Reinhard during the Holocaust.

[5] On 1 September 1942, at the rank of SS-Obersturmführer (First Lieutenant), on the orders of Wirth and Odilo Globocnik, Reichleitner took command of the Sobibór extermination camp with Franz Stangl's departure to Treblinka.

Reichleitner rarely showed his face in the camp, and it has been claimed that he was a heavy drinker, but his command at Sobibór was even more strict than that of his predecessor.

Moshe Bahir, a camp inmate, wrote: Reichleitner, a man in his late forties, with an Austrian accent, was dressed always with great elegance and wore gloves.

In autumn 1943, like so many of the perpetrators of Operation Reinhard, Reichleitner was then transferred to the Fiume area of Italy to kill Jews and quell the partisan resistance movement there.