Peter Augenstein,[1] 25 March 1874 – 6 September 1925) was a Hungarian politician, jurist, legal scholar, professor and translator who served as Minister of Foreign Affairs in 1919.

Before the First World War, he published articles for the Világ, Népszava, Huszadik század and the Szocializmus newspapers.

In Dénes Berinkey's cabinet, he served as state secretary of the interior.

During the Hungarian Soviet Republic, he tried to make connections with the Entente Powers as deputy People's Commissar of Foreign Affairs.

He translated works of Engels, Bebel and Mehring into Hungarian under the pseudonym, Pál Rab.