Sir Thomas Dyke Acland, 7th Baronet (14 August 1722 – 24 February 1785) of Killerton in Devon and Petherton Park in Somerset, was Member of Parliament for Devon, 1746–1747, for Somerset, 1767–1768, and was High Sheriff of Somerset in 1751. He was a prominent member of the West Country gentry, and a famous staghunter who used as his hunting seats his wife's Exmoor estates of Pixton and Holnicote.
He was the eldest son and heir of Sir Hugh Acland, 6th Baronet (1697-1728) of Killerton in Devon, by his wife Cicely Wroth, eldest daughter and eventual sole heiress of Sir Thomas Wroth, 3rd Baronet (1674–1721), MP, of Petherton Park, Somerset. He succeeded his father as 7th Baronet on the latter's death on 29 July 1728. The ancient Acland family, believed to be of Flemish origin, originated at the estate of Acland in the parish of Landkey in North Devon, where it is first recorded in 1155.
He was Member of Parliament for Devon, 1746–1747, Member of Parliament for Somerset, 1767–1768, and High Sheriff of Somerset for the year 1751.