There have been two baronetcies created for persons with the surname Ellis, both in the Baronetage of the United Kingdom. Both creations are extinct.
Ellis baronets of Byfleet and Hertford Street (1882): see Sir John Whittaker Ellis, 1st Baronet (1829–1912) Ellis baronets of Thresfield (1932): see Sir Robert Geoffrey Ellis, 1st Baronet (1874–1956)