Born: 1535 (Bornem, Belgium)
Died: 1596-05-06 (Mantua, Italy)

Giaches de Wert was a Franco-Flemish composer of the late Renaissance, active in Italy.
He was one of the leaders in developing the style of the late Renaissance madrigal, particularly influential on Claudio Monteverdi.

Alternative name: Jacques/Jaches de Wert, Giaches de Vuert.