Alfred Achermann (born 17 July 1959 in Römerswil) is a retired track cyclist and road bicycle racer from Switzerland, who was a professional rider from 1984 to 1991. He represented his native country at the 1984 Summer Olympics in Los Angeles, California, where he won the silver medal in the men's team time trial, alongside Richard Trinkler, Laurent Vial and Benno Wiss.