Archibald Malcolm Benn (20 January 1897 – 3 April 1980) was an Australian politician.
Born in Branxholme, Victoria, he was educated in Melbourne before moving to Queensland as a teenager where he worked as a shearer, and later as a public servant.
He was Director of Labour in Queensland during World War II.
In 1949, he was elected to the Australian Senate as a Labor Senator for Queensland.
He remained a Senator until his term expired in 1968.