Ernst Emil Max Gall (17 February 1888 – 5 August 1958) was a German art historian and historic preservationist.
Born in Danzig, Gall attended the Fürst-Otto-Gymnasium in Wernigerode and from 1907 initially studied two semesters of law at the Grenoble Alpes University and the Sorbonne. From 1908, he studied art history at the Humboldt University of Berlin. His teachers included Heinrich Wölfflin and Adolph Goldschmidt. In 1915, he was awarded a Dr. phil. by Goldschmidt at the Martin Luther University of Halle-Wittenberg.
After participating in the First World War in France, Gall got a job at the Landesamt für Denkmalpflege und Archäologie Sachsen-Anhalt in Halle. In 1920, he became a consultant at the Prussian Palaces and Gardens Foundation Berlin-Brandenburg in Berlin, responsible for eastern issues, modern art, monument conservation and palaces. In November 1929, he became director of the Prussian Palaces and Gardens Foundation Berlin-Brandenburg as successor to the Oberfinanzrat Paul Hübner. In 1933/34, he was suspended for a year due to his refusal to join the NSDAP, but was then able to continue in office. In 1945, he resigned from this office because of disagreements with the Soviet occupying power. After working briefly as an advisor on art and monument conservation issues at the American headquarters in Berlin, he became head of the museum department of the Bavarian Administration of State-Owned Palaces, Gardens and Lakes from 1946 until his retirement in 1953. In 1947, he became honorary professor for the history of architecture at the Ludwig Maximilian University of Munich.
Gall died in Munich at the age of 70. The art historian Günter Gall (1924–2008) was his son.
Gall's field of research was the History of architecture.
In 1923, he founded the Jahrbuch für Kunstwissenschaft, which he edited until 1930. In 1932, he founded the Zeitschrift für Kunstgeschichte with Wilhelm Waetzoldt. From 1934, Gall played a leading role in the Dehio-Vereinigung in the revision of Georg Dehio's Handbuch der Deutschen Kunstdenkmäler. After the death of Otto Schmitt, he continued the Reallexikon zur Deutschen Kunstgeschichte as managing editor from 1951.
