Walter Bucher (born 8 June 1926) is a Swiss retired cyclist. He competed in the team pursuit event at the 1948 Summer Olympics. Between 1955 and 1959 he won a medal at every UCI Motor-paced World Championships, including a gold medal in 1958. He also won five national titles in motor-paced racing (1955, 1957–1960).

Bucher was also a successful road cyclist, winning 11 six-day races out of 66. He missed the 1961 UCI Track World Championships in his native Zurich due to a bad fall earlier that year. Next year he stopped with cycling and founded a shipping company. He retired in 1992 due to an accident at work.