Sante Geronimo Caserio (Italian: [sante cazrjo]; 8 September 1873 16 August 1894) was an Italian anarchist and the assassin of Marie Franois Sadi Carnot, President of the French Third Republic. Caserio was born in Motta Visconti, Lombardy. On 24 June 1894, he fatally stabbed President Carnot after a banquet, to avenge the executions of anarchist bombers Auguste Vaillant and mile Henry.

Marie François Sadi Carnot (French: [maʁi fʁɑ̃swa sadi kaʁno]; 11 August 1837 – 25 June 1894) was a French statesman, who served as the President of France from 1887 until his assassination in 1894.