Peter Gemeinder (31 January 1891 in Dillhausen – 29 August 1931 in Mainz) was a Gauleiter of the Nazi Party (NSDAP) and a member of the German Reichstag.

At the end of 1921, he started working at the Finance Office in Frankfurt am Main where he would remain employed for the next ten years.

On 14 September 1930, Gemeinder entered national politics when he was elected to the Reichstag from electoral constituency 19, Hesse-Nassau.

[3] On 9 January 1931, Gemeinder succeeded Friedrich Ringshausen becoming the second Gauleiter of Gau Hesse-Darmstadt, which comprised the People's State of Hesse.

However his tenure was short, as on 29 August of the same year he died of a heart attack, after speaking at a Party rally in Mainz.