Arthur Ellis was a Canadian politician. He was elected to the Legislative Assembly of Ontario, representing Ottawa South for the Conservative Party, in 1929, and remained in the legislature until 1937 when he retired from politics. In 1936 he was a candidate in the Ontario Conservative leadership convention placing seventh with ten votes. He was mayor of Ottawa from 1928 until 1929.
Arthur Ellis was also the pseudonym of Canada's official hangman. For more information, see Capital punishment in Canada.