William Grenfell Max Muller

Sir William Grenfell Max Muller (9 June 1867 – 10 May 1945) was a British diplomat. He was British Minister to Poland from 1920 to 1928.

The son of the German-born philologist and Orientalist, Max Müller, Wilhelm (later changed to William) Grenfell Max Muller was educated at Eton College and University College, Oxford.