Tristan Bernard (7 September 1866 – 7 December 1947) was a French playwright, novelist, journalist and lawyer.
Born Paul Bernard into a Jewish family in Besançon, Doubs, Franche-Comté, France, he was the son of an architect. He left Besançon at the age of 14 years, relocating with his father to Paris, where he studied at the Lycée Condorcet, which was noted for its numerous literary alumni. In 1888 was born his son Jean-Jacques Bernard, also a dramatist.
He studied law, but after his military service he started his career as the manager of an aluminium smelter. In the 1890s he also managed the Vélodrome de la Seine at Levallois-Perret and the Vélodrome Buffalo, whose events were an integral part of Parisian life, being regularly attended by personalities such as Toulouse-Lautrec. He reputedly introduced the bell to signify the last lap of a race.
After his first publication in La Revue Blanche in 1891, he became increasingly a writer and adopted the pseudonym Tristan. His first play, Les Pieds Nickelés (Nickel-plated Feet), was a great success and was representative of the style of his later work (generally humorous). He became known especially for his writing for vaudeville-type performances, which were very popular in France during that time. He also wrote several novels and some poetry. Bernard is remembered mainly for witticisms, particularly from his play Les Jumeaux de Brighton (The Brighton Twins). In 1932, he was a candidate for the Académie Française, but was not elected, receiving only 2 votes of a total of 39.