Grimaldo is a Romance form of the Germanic personal name Grimwald. It may refer to:
Personal name Grimaldo Canella Grimaldo González Grimaldo de San Millán Grimaldo Turculis
Surname
Álex Grimaldo, Spanish footballer Joao Grimaldo, Peruvian footballer José de Grimaldo
See also House of Grimaldi, the Monaco dynasty descended from Grimaldo Canella of Genoa Grimaldi, Calabria, formerly known as Grimaldo Grimald