391 was a Dada-affiliated[1] arts and literary magazine created by Francis Picabia, published between 1917 and 1924 in Barcelona, Zürich and New York City.

[2] He was assisted in assembling the magazine by Olga Sacharoff, a Georgian emigre residing in Barcelona.

The title of the magazine derives from Alfred Stieglitz's New York periodical 291 (to which Picabia had contributed),[3] and bore no relation to its contents.

Despite Picabia's renown as an artist, it was mostly literary in content, with a wide-ranging aggressive tone, possibly influenced by Alfred Jarry and Guillaume Apollinaire.

However 391 remained essentially the expression of the inventive, energetic and wealthy Picabia, who stated of it: "Every page must explode, whether through seriousness, profundity, turbulence, nausea, the new, the eternal, annihilating nonsense, enthusiasm for principles, or the way it is printed.