The Lemon Baronetcy, of Carclew in the County of Cornwall, is a title in the Baronetage of Great Britain. It was created on 24 May 1774 for William Lemon, Member of Parliament for Penrhyn and Cornwall. The second Baronet also represented these constituences as well as Cornwall West in the House of Commons. The title became extinct on his death in 1868.
The family seat was Carclew House, near Mylor, Cornwall.