Guillaume Marcoureau, better known as Brécourt, (10 February 1638 – 28 March 1685) was a 17th-century French playwright and actor.

He played at the Théâtre du Marais then joined the troupe de Molière which he left in 1664 for the Hôtel de Bourgogne ; The illustration above shows the frontispiece of the publication in 1666 of The Nopce of village (John Lepautre engraving, detail, not published since 1682).

After a few brief passages in Paris, he lived in London, where he had a Ballet et musique pour le divertissement du Roy de la Grande-Bretagne presented in 1674.

In 1685 in Paris, to the point of death, he gave up his acting career in the historical context of excommunication of actors.

Brécourt died after an effort he made playing one of his own comedies, Timon.