Laurence Michael Harvey Parsons, 6th Earl of Rosse, KBE (28 September 1906 – 5 July 1979) was an Anglo-Irish peer.

At Oxford, Parsons was member of the Railway Club, which included: Henry Yorke, Roy Harrod, Henry Thynne, 6th Marquess of Bath, David Plunket Greene, Edward Henry Charles James Fox-Strangways, 7th Earl of Ilchester, Brian Howard, Michael Parsons, John Sutro, Hugh Lygon, Harold Acton, Bryan Guinness, 2nd Baron Moyne, Patrick Balfour, 3rd Baron Kinross, Mark Ogilvie-Grant, John Drury-Lowe.

[1] The members of the Railway Club dined in black-tie aboard the Penzance-Aberdeen Express between Oxford and Leicester.

[2] Lord Rosse fought in the Second World War, reaching the rank of captain in the Irish Guards.

They had two children: Anne Messel, by her first marriage to Ronald Armstrong-Jones, was the mother of Antony Armstrong-Jones, 1st Earl of Snowdon, who in 1960 married Princess Margaret, sister of Queen Elizabeth II of the United Kingdom.