William Hillier Holborow CMG VD (23 December 1841 – 10 July 1917) was an Australian politician.
He was born in Sydney to linen draper Daniel Holborow and his wife Mary.
On 27 July 1864 he married Amelia Town; they had ten children.
[6] In 1880 he was elected to the New South Wales Legislative Assembly as the member for Argyle.
He was one of the commissioners for New South Wales for the Melbourne Centennial Exhibition in 1888.