Thomas Gordon Gibbons Dangar (27 November 1829 – 4 July 1890) was a squatter and politician in the Colony of New South Wales.
He was born in Sydney, the son of cooper Matthew John Gibbons and Charlotte Selina Hutchinson.
He was educated at Sydney College, but did not read for the bar due to illness and became a squatter around the Liverpool Plains.
In 1847 he moved to the New England district and became one of the area's pioneers, eventually settling at Bullerawa on the Namoi River around 1850.
He returned to the Assembly in 1887 as the Free Trade member for Namoi, and held the seat until his death at Petersham on 4 July 1890(1890-07-04) (aged 60).