Albert Oliver Badman (18 December 1885 – 24 April 1977) was an Australian politician.

He was a Methodist lay preacher and President of the South Australian Country Party before entering Parliament.

In 1931, he was elected to the Australian Senate for South Australia, representing the Country Party.

The United Australia Party (UAP) did not contest the seat as the Country Party had agreed to allow the UAP's sitting member for Grey, Philip McBride, to take Badman's place in the Senate.

Together with fellow Country Party members Arthur Fadden, Bernard Corser and Thomas Collins, Badman dissociated himself from party leader Earle Page after the latter made attacks on the leader of the UAP, Robert Menzies; the exclusion of these four led to the election of Page supporter Archie Cameron as the party's next leader.