Lord George Augusta Hill (9 December 1801 – 6 April 1879) was an Anglo-Irish military officer, politician and landowner. Hill was the posthumous son of Arthur Hill, 2nd Marquess of Downshire and his wife Mary Hill, Marchioness of Downshire, granddaughter of Samuel Sandys, 1st Baron Sandys. He was born three months after his father's death by suicide.