Heinrich Barbl (born 3 March 1900, Sarleinsbach, Austria; date of death unknown, not before 1965) was an Austrian-born SS-Rottenführer.

He participated in the T-4 euthanasia program in Nazi Germany and, after the invasion of Poland, in Operation Reinhard phase of the Holocaust.

Camp commandant, SS-Hauptsturmführer Gottlieb Hering did not allow him to participate in the execution of sick and elderly arrivals because, "he is so daft that he would shoot us, not the Jews".

He was frequently whipped by Christian Wirth for his drunken behavior,[4] and for an unknown reason in the winter of 1942–43, Hering allegedly had him imprisoned in a cell for several days.

[3] Barbl was sent to Sobibor extermination camp by Wirth for his plumbing skills, to help fit the exhaust piping for the gas chambers.