Willy Jansson (born 13 May 1927 in Sandar) is a Norwegian politician for the Labour Party.
He was elected to the Norwegian Parliament from Vestfold in 1969, but was not re-elected in 1973. He had previously served as a deputy representative during the terms 1961–1965 and 1965–1969. From May 1968 he served as a regular representative, filling in for Johan Andersen who had died.
On the local level he was a member of Sandefjord municipality council from 1955 to 1971.