Grez may refer to:
People Benjamín Grez (born 1992), Chilean sailor Cristóbal Grez (born 1987), Chilean sailor José Matías Grez (1766–1840), Chilean politician, mayor of Rancagua between 1804 and 1805 Vicente Grez (1847–1909), Chilean politician, journalist, and writer
Places Grez, Oise, in France Grez-Doiceau in Belgium Grez-Neuville in France Le Grez in France Grez-en-Bouère in France Grez-sur-Loing in France Grez, Navarre, in Spain