The Grand-Place (French, pronounced [ɡʁɑ̃ plas]; "Grand Square"; also used in English) or Grote Markt (Dutch, pronounced [ˌɣroːtə ˈmɑr(ə)kt] ; "Big Market") is the central square of Brussels, Belgium. It is surrounded by opulent Baroque guildhalls of the former Guilds of Brussels and two larger edifices; the city's Flamboyant Town Hall, and the neo-Gothic King's House or Bread House building, containing the Brussels City Museum. The square measures 68 by 110 metres (223 by 361 ft) and is entirely paved.

The Grand-Place's construction began in the 11th century and was largely complete by the 17th. In 1695, during the Nine Years' War, most of the square was destroyed during the bombardment of Brussels by French troops. Only the façade and the tower of the Town Hall, which served as a target for the artillery, and some stone walls resisted the incendiary balls. The houses that surrounded the Grand-Place were rebuilt during subsequent years, giving the square its current appearance, though they were frequently modified in the following centuries. From the mid-19th century, the square's heritage value was rediscovered, and it was thoroughly renovated.

The Grand-Place is the most important tourist destination and most memorable landmark in Brussels. It is also considered one of the world's most beautiful squares, and has been a UNESCO World Heritage Site since 1998. The square frequently hosts festive and cultural events, among them, in August of every even year, the installation of an immense flower carpet in its centre. It is also a centre of annual celebrations during the Christmas and New Year period, and a Christmas tree has been erected annually on the square since the mid-20th century. This site is served by the premetro (underground tram) station Bourse - Grand-Place/Beurs - Grote Markt (on lines 4 and 10), as well as the bus stop Grand-Place/Grote Markt (on lines 33, 48 and 95).