Sir Robert John "Robin" Maxwell-Hyslop^[1] (6 June 1931 – 13 January 2010) was a British Conservative Party politician.

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The younger son of Royal Navy Captain Alexander Henry Maxwell-Hyslop (who adopted the additional name of Maxwell in 1925),^[2] AM, who served aboard HMS Devonshire and was recognised for his bravery in averting its loss by explosion in 1929, and was subsequently Captain of HMS Cumberland,^[3] and his wife Cecilia Joan (née Bayly),^[4] Maxwell-Hyslop was educated at Stowe School and Christ Church, Oxford. He worked for the aero engine division of Rolls-Royce from 1954 to 1960.^[5]

He contested the Derby North constituency at the 1959 general election. When the MP for Tiverton, Derick Heathcoat-Amory, was elevated to the peerage in 1960, Maxwell-Hyslop was elected as his successor at the resulting by-election, and retained the seat until he retired at the 1992 general election. His successor was Angela Browning.

Maxwell-Hyslop was the longest-serving member ever of the Commons Select Committee on Trade and Industry, from 1971 to 1992. (The select committee structure was altered in 1979, with Maxwell-Hyslop continuing to serve on the committee in its new form.)^{[6][dubious – discuss]} He was also the last Conservative MP to ask Prime Minister Margaret Thatcher a question at PMQ's.^{[citation needed]}

He was knighted in the 1992 New Year Honours. In 1968, he had married Joanna Margaret, daughter of Thomas McCosh, of Pitcon, Dalry, North Ayrshire;^[7] they had two daughters.^[8]

Maxwell-Hyslop's sister Anthea Peronelle Maxwell-Hyslop is the mother of the fashion designer Serena Bute.^[9]