Francis Lascelles may refer to:

Francis Lascelles (1612–1667), regicide who sat in judgement on King Charles I Francis Lascelles (British Army officer) (1744–1799), general in the British Army Francis Lascelles Jardine (1841–1919), Australian pioneer associated with the exploration and settlement of Far North Queensland Frank Lascelles (diplomat) (1841–1920), British diplomat Frank Lascelles (pageant master) (1875–1934), British pageant master