Hansi Bächtold (born 21 August 1956), is a retired Swiss sidecarcross rider and four times Sidecarcross World Champion, having won the competition from 1984 to 1987, together with his passenger Fritz Fuß.
The duo became the first-ever combination to win the competition four times in a row, a feat later repeated by the Swiss team of Andreas Fuhrer and Adrian Käser and surpassed by Dutch rider Daniël Willemsen with six consecutive titles.Apart from his four World Championship triumphs he has also won the Swiss national sidecarcross championship on five occasions, in 1979, 1981, 1984, 1986 and 1987.