Robert Ralph Scrymgeour Hiscox DL (born January 1943)^[1] is a British businessman, art collector, and philanthropist. He was chairman of Hiscox Ltd, a firm of Lloyd's of London underwriters, for 43 years until his retirement in 2013.

Hiscox is the son of Ralph Hiscox, who was a founding partner in Roberts & Hiscox in 1946. He was educated at Rugby School, followed by Corpus Christi College, Cambridge, where he earned a degree in economics and law.^[2][3] He joined Hiscox Ltd in 1965 as an underwriter of fine art and personal accident insurance.^[3]

After his father died in 1970, he took control of the partnership as Anthony Roberts, the other co-founder, moved aside.^[3] Roberts & Hiscox gradually incorporated, starting in 1993 by becoming Hiscox plc. It grew from a Lloyd's underwriter to the international insurance company, Hiscox Ltd, headquartered in Bermuda. He was the company's chairman for 43 years until his retirement in 2013, then honorary president until 2017.^[4]

Hiscox was deputy chairman of Lloyd's from 1993 to 1995, and helped save it from the brink of collapse.^[5]

Hiscox is chairman of the Wiltshire Bobby Van Trust, a charity which works in partnership with Wiltshire Police to provide home security advice for elderly, vulnerable and disadvantaged people throughout Wiltshire.^[6]

He has hosted the Wiltshire Steam and Vintage Rally annually in June for a number of years, at Rainscombe Park, Oare, Wiltshire.^[7] In 2014, he saved the White Horse Bookshop on Marlborough High Street from closure.^[8] He was High Sheriff of Wiltshire in 2011–2012 and a Deputy Lieutenant of Wiltshire until 2018.^[9]

Hiscox was married first to Lucy Mills, and secondly to Lady Julia Meade (third daughter of the 6th Earl of Clanwilliam). He has five sons, and lives in Wiltshire.^[10]