Philipp Johann Adolf Schmitt (20 November 1902 – 8 August 1950) was a German officer of the Schutzstaffel (SS) who served as commandant of Fort Breendonk, a Nazi prison camp in German-occupied Belgium during World War II. For a year, he was also in charge of Mechelen transit camp but was dismissed for corruption and black marketeering. He later served in occupied Denmark and the Netherlands. After the war, he was convicted of war crimes and was executed in 1950. Schmitt was the last person executed in Belgium.
Schmitt was born in Bad Kissingen, Bavaria in 1902. After the First World War Schmitt enlisted in a Bavarian Freikorps. He was a member of the Bund Oberland from 1922 to 1923 and from 1925 to 1930. He became a member of the NSDAP in 1925 but let his membership lapse in 1926. In September 1930 Schmitt renewed his party membership and in March 1932 he joined the Schutzstaffel (SS) (member nr. 44.291). He was promoted to SS-Untersturmführer in September 1935 and to SS-Obersturmführer in September 1936. In 1936 he was transferred to the SD. In April 1938 he was promoted to SS-Hauptsturmführer. Before the start of the Second World War Schmitt was transferred to Wiesbaden where he oversaw order during the road works of the Organisation Todt.
After the fall of Belgium, in August 1940 Schmitt was posted to Brussels as a SS-Sturmbannführer with the SD. He was given the task to establish a prison camp in the old Fort Breendonk. He served as camp commandant until November 1943. Schmitt was known for his ruthless attitude towards the prisoners. He was known for having his Alsatian dog, 'Lump', attack the prisoners. Besides being commandant of Breendonk in July 1942 Schmitt was also made commandant of the SS-Sammellager Mecheln, a detention and deportation camp established in the Dossin, the oldest barracks at Mechelen. From this camp over 25,000 people, mainly Jews, were deported to Auschwitz. In November 1943 Schmitt was fired as commandant as it became known that he had engaged in black market practices, for which he was formally reprimanded by Ernst Kaltenbrunner. He was replaced as commandant by Karl Schönwetter.