The Champneys, later Mostyn-Champneys Baronetcy, of Orchardleigh in the County of Somerset, was a title in the Baronetage of Great Britain. It was created on 12 January 1767 for Thomas Champneys, subsequently High Sheriff of Somerset from 1775 to 1776. He was succeeded by his son, Sir Thomas, the second Baronet. He married Charlotte Margaret Mostyn, daughter of Sir Roger Mostyn, 5th Baronet (see Mostyn baronets). In 1821 Sir Thomas assumed by Royal Sign Manual the additional surname of Mostyn. He was childless and the title became extinct on his death in 1839.
The Champneys family had been settled at Orchardleigh in Somerset since the Norman conquest. The first Baronet's grandfather, John Champneys, was High Sheriff of Somerset in 1695, and the first Baronet's father, Richard Champneys, in 1728.
The name is now used for a large shopping development in Llandudno - Mostyn Champneys Retail Park. Google Maps (53.3195,-3.8177)