Gustave Thomas Carlisle Miller (26 November 1852 – 20 October 1918) was an Australian politician.
He was born in Prospect to farmer William Richardson Miller and Catherine Engel.
He was educated at St Philip's and Fort Street schools before becoming a journalist.
In 1889 he was elected to the New South Wales Legislative Assembly as the member for Monaro, representing the Protectionist Party.
In 1901, however, he joined the Labor Party, and represented Monaro in that capacity until his death in Marrickville in 1918.