Sigurd Lund Hamran (24 January 1902 - 4 November 1977) was a Norwegian politician for the Labour Party.
He was born in Flakstad Municipality.
He was elected to the Norwegian Parliament from Nordland in 1954, and was re-elected on three occasions. He had previously been a deputy representative in the periods 1945 - 1949 and 1950 - 1953. During these terms, from December 1945 to November 1951 he served as a regular representative meanwhile Reidar Carlsen was appointed to the Cabinet.
Hamran was deputy mayor of Moskenes Municipality in the periods 1937 - 1941, 1955 - 1959, 1959 - 1961 and 1962 - 1963. He had brief spells as mayor in 1945 and 1961, and regained this position during the terms 1963 - 1967 and 1967 - 1971.