Sir William O'Brien Lindsay KBE (8 October 1909 – 20 October 1975) was the Chief Justice of Anglo-Egyptian Sudan from 1950 or 1954 to 1955, during the period when it was administered as an Anglo-Egyptian condominium. He served in the Sudan Political Service from 1932 to 1955, and later establishing a law firm in Nairobi, Kenya. Lindsay was a talented sportsman as a youth, playing first-class cricket for Oxford University, Scotland and Kent County Cricket Club.