Günther Gräntz (26 July 1905 – 30 April 1945) was a member of the Nazi Party and its paramilitary unit, the Sturmabteilung (SA).

On 2 June 1925, Gräntz finally joined the Nazi Party (membership number 5,274) at its Ortsgruppe (local group) in Frankfurt, once the ban on it was lifted.

[2] Following the Nazi seizure of power in 1933, Gräntz received a mandate to the Landtag of Prussia on 5 March 1933, which he held until that body was dissolved on 14 October 1933.

[4] Gräntz was an early member of the Nazi Party's paramilitary unit, the Sturmabteilung (SA), joining it in November 1922 when he was still in school.

Gräntz next was given his own command as SA-Führer of Sturmbann (battalion) I of SA-Standarte 81, while also serving as the regimental adjutant through December of that year.

[5] After the Nazis took control of the national government in January 1933, Gräntz became the adjutant to the police president of Frankfurt from March to May 1933.

After being promoted to SA-Obergruppenführer on 30 January 1941, Gräntz was appointed as the Führer of SA-Gruppe Niedersachsen, with headquarters in Hanover from 1 February 1942 to 31 December 1943.

After the outbreak of the Second World War, he entered military service as an Leutnant of reserves with Infantry Regiment 468 and fought in the Battle of France in which he was wounded.

[8] In October 1944, Gräntz was named the Chief of Staff for Gau Berlin of the Volkssturm, the Nazi Party militia.