Marcelino Garcia Alonso (born 1971 in Oviedo, Asturias) is a Spanish former professional road bicycle racer. He rode at the Danish professional cycling team, CSC-Tiscali, which he joined coming from Spanish Team ONCE. He rode for the Danish team until 2002, where he went to another Spanish team, Labarca-2 Café Baque. Since retiring, Marcelino can be found on Major Grand Tours as a Tour Guide in the summer months throughout Europe. He recently launched his new cycling holidays company, On The Road Cycling Tours, which includes packages to the Giro D'Italia, Tour de France and of course, his home race, the Vuelta Espana.