Guido is a given name Latinised from the Old High German name Wido. It originated in Medieval Italy. Guido later became a male first name in Austria, Germany, the Low Countries, Spain, Portugal and Switzerland. The meaning of the name is debated, with various sources indicating the Germanic "Wido" means "wood" and others connecting the Italian form "Guido" to the latinate root for "guide".
Guido è un nome proprio di persona italiano maschile.