Rudolf Hermann Eisenmenger (7 August 1902 – 3 November 1994) was an Austrian artist.

Professor Eisenmenger belonged to the Danube Swabians of Transylvania.

In 1936 he won a silver medal in the art competitions of the Olympic Games for his "Läufer vor dem Ziel" ("Runners at the Finishing Line").

[1] He is known for the mural, Homecoming of the Ostmark, which shows the proud and glorious return of Austria to the German Empire 1938 after the Anschluss Österreichs in two parts, both seven metres wide.

In a highly controversial decision Eisenmenger was selected to create a large-scale picture for the safety curtain of the Vienna State Opera in 1955.