Sykes Baronets, of Sledmere (1783)
- Sir Mark Sykes, 1st Baronet (1711–1783)
- Sir Christopher Sykes, 2nd Baronet (1749–1801)
- Sir Mark Masterman-Sykes, 3rd Baronet (1771–1823)
- Sir Tatton Sykes, 4th Baronet (1772–1863)
- Sir Tatton Sykes, 5th Baronet (13 March 1826 – 4 May 1913). Sykes was a landowner, racehorse breeder, church-builder and eccentric. At the age of 48, he married Christina Anne Jessica Cavendish-Bentinck, daughter of George Augustus Frederick Cavendish-Bentinck and Prudentia Penelope Leslie, on 3 August 1874. His bride was 30 years younger, and it was not a happy marriage. The couple eventually separated, with Sir Tatton disowning his wife's future debts. It is through this marriage that the Sykes are related indirectly to Queen Elizabeth II of the United Kingdom through George Cavendish-Bentinck to Charles William Frederick Cavendish-Bentinck, the great-grandfather of the Queen. Sykes died in May 1913, aged 87, and was succeeded in the baronetcy by his son Mark.
- Sir Mark Sykes, 6th Baronet (1879–1919)
- Sir (Mark Tatton) Richard Tatton-Sykes, 7th Baronet (1905–1978)
- Sir Tatton Christopher Mark Sykes, 8th Baronet (born 1943)
The Heir Presumptive to the Baronetcy is Jeremy John Sykes (born 1946), younger brother of the 8th Baronet.
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