Alfred Thommesen (2 June 1914 - 31 December 1988) was a Norwegian shipowner and politician for the Conservative Party.
He was born in Flosta.
He was elected to the Norwegian Parliament from Aust-Agder in 1958, and was re-elected on three occasions.
Thommesen was a member of Flosta municipality council between 1945 and 1947, and later served as deputy mayor in the periods 1951 - 1955 and 1955 - 1958.