George Henry Cox (18 October 1824 – 21 November 1901) was an Australian politician. He was a member of the New South Wales Legislative Council between 1863 and 1901. He was also a member of the New South Wales Legislative Assembly between 1856 and 1859.

Cox was the eldest son of George Cox a pioneer Sydney pastoralist and a grandson of William Cox who constructed the first road across the Blue Mountains. He was the nephew of Edward Cox, a member of the first Legislative Council and a cousin of Edward King Cox and Archibald Bell who also served in the New South Wales Parliament.^[1] Cox was educated at The King's School, Parramatta and developed extensive pastoral interests in Dubbo, Mudgee, the Warrego River District and the Liverpool Plains.^[1]

He was prominent in the synod of the Anglican Church of Australia, active in local Government in the Mudgee district and a foundation member of the Royal Agricultural Society of New South Wales.^[2]

Cox was elected as the representative for the seat of Wellington (County) in the first Legislative Assembly convened after the granting of responsible self-government in 1856.^[3] He was subsequently re-elected unopposed at the 1858 colonial election,^[4] but did not contest the 1859 election when the seat of Wellington (County) was abolished. He received a life appointment to the Legislative Council in 1863 and became an active supporter of the Free Trade Party.^[5]