Louis Hurtaut Dancourt (1725 – 29 July 1801) was a French librettist, dramatist, and actor.
He was born Louis Heurteaux in Paris, and later adopted Dancourt as a pseudonym. He was unsuccessful in Paris as an actor and appeared in the French provinces in Rennes, Strasbourg, Bordeaux, and Rouen, as well as outside France in Bayreuth, Munich, Berlin, and Brussels.
In Berlin after 1755, he wrote the libretto of Le triple horoscope, a divertissement with music composed by Gaultier. In 1762, with a favorable recommendation from Charles Simon Favart, he joined the French company performing in Vienna. His libretto for La rencontre imprévue, ou Les pèlerins de la Mecque (1763), a three-act opéra-comique, was set to music by Christoph Willibald Gluck and first performed on 7 January 1764 in Vienna. Dancourt was able to mount revivals in Brussels in 1765, Bordeaux (as Ali et Rezia) in 1766, and Paris (as Les fous de Médine, ou La rencontre imprévue, with music arranged by Jean-Pierre Solié) in 1790. It was adapted and translated into Italian by Carl Friberth and inspired Haydn's L'incontro improvviso (1775).
He died in Paris.
Other librettos include: