Sir William Trelawny, 6th Baronet
Sir William Trelawny, 6th Baronet (c. 1722 – 11 December 1772), of Trelawne, Cornwall was a British politician and colonial administrator. 
Trelawny sat as Member of Parliament for West Looe from 1757 to 1767. The latter year he was appointed Governor of Jamaica, a post he held until his death in December 1772. Trelawny Parish, Jamaica was named after him.
He died in Jamaica in 1772. He had married his cousin Laetitia, the daughter and heiress of Sir Harry Trelawny, 5th Baronet, with whom he had a son and a daughter.
- Kidd, Charles, Debrett's peerage & Baronetage 2015 Edition, London, 2015, p.B796
- "TRELAWNY, William (?1722-72), of Trelawne, nr. Looe, Cornw". History of Parliament Online. Retrieved 19 September 2018.
- Morgan, Kenneth. "Trelawny, Edward". Oxford Dictionary of National Biography (online ed.). Oxford University Press. doi:10.1093/ref:odnb/27690.(Subscription or UK public library membership required.)
- Leigh Rayment's Historical List of MPs
|Parliament of Great Britain|
| Member of Parliament for West Looe
With: John Frederick 1757–1761
Francis Buller 1761–1765
John Sargent 1765–1767
Roger Hope Elletson
| Governor of Jamaica
|Baronetage of England|