Salmagundi; or The Whim-whams and Opinions of Launcelot Langstaff, Esq. & Others, commonly referred to as Salmagundi, was a 19th century satirical periodical created and written by American writer Washington Irving. Written in collaboration with Irving's oldest brother, William, and James Kirke Paulding, Irving produced twenty issues at irregular intervals between January 24, 1807 and January 15, 1808.
Salmagundi lampooned New York culture and politics in a manner much like today's Mad magazine. It was in the November 11, 1807 issue that Irving first attached the name "Gotham" to New York City.

Irving and his collaborators published the periodical using a wide variety of pseudonyms, including Will Wizard, Launcelot Langstaff, Pindar Cockloft, and Mustapha Rub-a-Dub Keli Khan.

Irving and Paulding discontinued Salmagundi in January 1808, following a disagreement with publisher David Longworth over profits.