Guido Reni | Guido Westerwelle | Guido Aleati | Libera Università Internazionale degli Studi Sociali Guido Carli | Guido van Rossum | Guido delle Colonne | Guido Buzzelli | Guido Verbeck | Guido Mantega | Guido Guidi | Guido Gezelle | Guido Calabresi | Guido Cagnacci | Guido Buchwald | Guido Bertolaso | Father Guido Sarducci | Tomás Guido | Guido Tarlati | Guido Maus | Guido Görres | Guido de Marco | Guido Crepax | Guido Bonatti | Guido Baumann | The Dragon's Head and Tail, from Guido Bonatti | Saint-Guidon/Sint-Guido metro station | Luigi Guido Grandi | Kiss Me, Guido | José María Guido | Guido van de Kamp |
Guido Franch reportedly had a process of transmuting water molecules into high-octane gasoline compounds (named Mota fuel) that would reduce the price of gasoline to 8 cents per gallon.