Luis Fernando López Erazo (born 3 June 1979 in San Juan de Pasto, Nariño) is a Colombian race walker.

[1][2] López was introduced to athletics by his father, who was also a competitive race walker.

[3] His uncle, Marcelino Pastrana, was a former Colombian national champion at the 800 m, and later became his coach.

[3] When he won the gold medal at the 2011 World Championships, it was the first athletics world championship medal to be won by a Colombian.

[3] He was declared the silver medalist in a photo finish at the 2017 Pan American Race Walking Cup 50 kilometers race walk, walking the same time as winner Claudio Villanueva, his personal best 3:51:35.