John Bertie Martin (16 October 1890 – 14 March 1964) was an Australian politician.
He was born in Waverley to engineer John Martin and Maria Theresa McArdle.
He was a telephonist in the Postmaster-General's Department from 1904 to 1912, and in 1910 married Elizabeth Louise Smith, with whom she had two children.
From 1931 to 1946 he was a Labor member of the New South Wales Legislative Council.
When he died at Camperdown in 1964, Martin was the state secretary of the Australian Funeral Directors' Association.