William Dunch (1508–1597) was an English politician, a local official in the counties of Berkshire and Oxfordshire and Auditor of the Royal Mint for Kings Henry VIII and Edward IV.
William represented Wallingford in Berkshire (now Oxfordshire) as an MP (1563–1571).
William bought the manor of Little Wittenham in 1552 from Edmund Peckham, and it became the family seat.
His eldest son, Edmund, was also an MP, for Wallingford and then Wootton Bassett in Wiltshire.
[1] His second son, Walter, a lawyer, lived at Avebury Manor in Wiltshire, which William purchased for him in 1551.