William Pike (died 22 December 1591) was an English Roman Catholic martyr who was beatified in 1987.

In 'A History of Dorset' (ISBN 0705000109) A. Lindsay Clegg, former Town Clerk of Bournemouth, claims that Pike lived at Moordown, now within modern Bournemouth, then part of the Liberty of Westover.

Pike, or Pyk was a common name in Westover since the 14th century, according to the Christchurch Cartulary (ISBN 1859757618).

He was executed by being hung, drawn and quartered on 22 December 1591 for denying the Royal Supremacy.

Martha's husband Henry Falkner had converted priest John Chapman to Catholicism, in 1579.