Sir William Strode (1562–1637) of Newnham in the parish of Plympton St Mary, Devon, England, was a member of the Devon landed gentry, a military engineer and seven times a Member of Parliament elected for Devon in 1597 and 1624, for Plympton Erle in 1601, 1604, 1621 and 1625, and for Plymouth in 1614. He was High Sheriff of Devon from 1593 to 1594 and was knighted in 1598. In 1599 he was appointed Deputy Lieutenant of Devon. There is a monument to him in the parish church of Plympton St Mary.

Newnham in the parish of Plympton St Mary in Devon is a historic estate long held by the Devonshire gentry family of Strode. The ancient mansion house is situated 1 mile north-east of St Mary's Church, beside the Smallhanger Brook, a tributary of the Tory Brook, itself flowing into the River Plym. The house was abandoned by the Strode family in about 1700 when they built a new mansion on the site of Loughtor Manor House, about 1/3 mile to the north-east of Old Newnham.