List of Famous people who died in 1931

Gustave Joseph Waffelaert (1847–1931) was the 22nd bishop of Bruges in Belgium.

Isaac Newton Lewis was a United States Army officer and the inventor of the Lewis gun.

Edith Posca (1892–1931) was a German stage and film actress. The wife of director Lupu Pick, she appeared as the leading lady in a number of his silent era productions.

Hussein bin Ali al-Hashimi was an Arab leader from the Banu Hashim clan who was the Sharif and Emir of Mecca from 1908 and, after proclaiming the Great Arab Revolt against the Ottoman Empire, King of the Hejaz from 1916 to 1924. At the end of his reign he also briefly laid claim to the office of Sharifian Caliph. He was a 37th-generation direct descendant of Muhammad, as he belongs to the Hashemite family.

William Carmichael M'Intosh LLD was a Scottish physician and marine zoologist. He served as president of the Ray Society, as vice-president of the Royal Society of Edinburgh (1927–30), and was awarded the Neill Prize (1865-8).

Alexandre Darracq was a French investor, engineer, cycle manufacturer and automobile manufacturer. By 1904, Darracq was producing more than ten percent of all automobiles in France and he sold a substantial part of his business to British investors. He became fascinated by the possibilities of a rotary valve engine, put it into production and though it became a disaster for Darracq & Cie persisted in installing it in Darracq products. He was obliged to retire in June 1912 aged 56 and after the Armistice his name was dropped from his Suresnes factory's mass-produced products.

Felix Mikhailovich Blumenfeld was a Russian composer, conductor of the Imperial Opera St-Petersburg, pianist, and teacher.