Gilbert Kennedy may refer to:
Gilbert Kennedy, 3rd Earl of Cassilis (1515–1558), Scottish landowner, soldier, politician and judge; served as Treasurer of Scotland Gilbert Kennedy, 1st Lord Kennedy (1405–1489), Scottish lord Gilbert Kennedy, 4th Earl of Cassilis (c. 1541–1576), Scottish peer Gilbert Kennedy, 2nd Earl of Cassilis (died 1527), British peer Gilbert Kennedy (rower) (1866–1921), English rower Gilbert G. Kennedy (1844–1909), Scottish amateur sportsman