Liv Andersen (9 August 1919 in Oslo – 21 March 1997) was a Norwegian politician for the Labour Party.
She was elected to the Norwegian Parliament from Oppland in 1969, and was re-elected on three occasions.
She had previously served as a deputy representative during the term 1965–1969.
On the local level she was a member of the executive committee of Gjøvik municipality council from 1963 to 1971.
From 1967 to 1971 she was also a member of Oppland county council.
She chaired the county party chapter from 1967 to 1970.