Maximilian Reinitz (1872–1935) was an Austrian painter born and active in Vienna. He developed his artistic practice within the Cubist movement and was also associated with Neue Sachlichkeit.
Reinitz worked as a portrait and landscape painter, applying the formal innovations of Cubism and the objective approach of Neue Sachlichkeit to his subjects. His oeuvre included commercial and propaganda art, exemplified by war bond posters such as Zeichnet die sechste Kriegsanleihe (1917), alongside landscape scenes like Winter in Central Park (1929).