Sir Alexander George Wales (11 October 1885 – 31 May 1962) was an Australian businessman and politician.
From 1903 he worked as a public service clerk and from 1907 as a secretary for the Albion Quarry Company.
He eventually rose to the position of managing director of the Albion Quarry Company, and also had the directorship of Alba Petroleum and Ampol.
In 1936 he won a by-election for the Victorian Legislative Council's Melbourne Province, representing the United Australia Party.
Knighted in 1937, he resigned in 1938 due to an alleged conflict of interest.