Bjarne Fjærtoft (7 November 1899 – 28 August 1981) is a Norwegian politician for the Liberal Party.
He was born in Jondal.
He was elected to the Norwegian Parliament from Møre og Romsdal in 1954, and was re-elected on one occasion.
Fjærtoft held various positions in Ålesund city council from 1947 to 1955, serving as mayor in 1950–1951.
Outside politics he worked as a jurist, most notably as stipendiary magistrate (byfogd) in from 1946 to 1969, having graduated as cand.jur. in 1924. He was also involved in the local fish trade.