David William St John Heath is a British optometrist and Liberal Democrat politician. He was the Member of Parliament (MP) for Somerton and Frome from 1997 to 2015. He served as the Minister of State for Agriculture and Food from September 2012 to October 2013 in the Cameron–Clegg coalition government.

Westbury-sub-Mendip is a village and civil parish in Somerset, England. The village is on the southern slopes of the Mendip Hills, 4 miles (6.4 km) from Wells and Cheddar.