List of Famous people who died in 1931

Charles-Marie Gustave Le Bon was a leading French polymath whose areas of interest included anthropology, psychology, sociology, medicine, invention, and physics. He is best known for his 1895 work The Crowd: A Study of the Popular Mind, which is considered one of the seminal works of crowd psychology.

Henry Crawley was an English cricketer. He played four first-class matches for Cambridge University Cricket Club between 1885 and 1887.

Princess Isabella Hedwig Franziska Natalie of Croÿ was by birth member of House of Croÿ and by marriage member of House of Habsburg.

Carin Axelina Hulda Göring was the Swedish first wife of Hermann Göring.

Charles Meyer was a Danish racing cyclist. He won the 560 km long Bordeaux–Paris in 1895, and finished second in the 1896 Paris–Roubaix and fifth in the 1898 race.

Richard Granville Hare, 4th Earl of Listowel, known as Viscount Ennismore from 1866 to 1924, was an Irish peer and British Army officer.

Colonel Cecil Henry Law, 6th Baron Ellenborough,, was a British Army officer and a member of the House of Lords.

María Antonieta Rivas Mercado Castellanos was a Mexican intellectual, writer, feminist and arts patron.

Auguste-Henri Forel was a Swiss myrmecologist, neuroanatomist, psychiatrist and eugenicist, notable for his investigations into the structure of the human brain and that of ants. For example, he is considered a co-founder of the neuron theory. Forel is also known for his early contributions to sexology and psychology. From 1978 until 2000 Forel's image appeared on the 1000 Swiss franc banknote.

Prince Tommaso of Savoy, 2nd Duke of Genoa, who is also known as Thomas Albert Victor of Savoy, was an Italian royal prince, nephew of Victor Emmanuel at the time the King of Sardinia, who on 18 February 1861 became the first King of a united Italy. His cousin and brother-in-law Umberto I and his nephew Victor Emmanuel III became subsequent kings of Italy.