Alberto Fernández Blanco (born 15 January 1955, died 14 December 1984), was a Spanish road racing cyclist. His son Alberto Fernández Sainz is also a road racing cyclist.

As an amateur, he won the Spanish mountain bike championships, and turned professional in 1978. During his career, he was nicknamed el Galleta ("the Biscuit"), because the town where he lived, Aguilar de Campoo, had several biscuit factories.

His best results came during the last two years of his career. He finished 10th overall in the 1982 Tour de France, and 3rd in his first appearance in the 1983 Giro d'Italia. He also finished 3rd in the 1983 Vuelta a España, improving to 2nd in 1984, only 6 seconds behind winner Éric Caritoux (the shortest winning margin in any of the Grand Tours).