Sir William Trelawny, 6th Baronet

Sir William Trelawny, 6th Baronet (c. 1722 – 11 December 1772), 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.