Lieutenant-Colonel William Boynton (14 July 1641 – 17 August 1689) was an English Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

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He was the eldest son of Sir Francis Boynton, 2nd Baronet of Barmston.

He entered Parliament in 1680 as member for Hedon

Hedon (UK Parliament constituency)

Hedon, sometimes spelt Heydon, was a parliamentary borough in the East Riding of Yorkshire, represented by two Members of Parliament in the House of Commons briefly in the 13th century and again from 1547 to 1832.-History:...

, remaining an MP until 1685.

Dying before his father, he never succeeded to the baronetcy. He married Elizabeth Bernard, daughter of John Bernard of Hull, and they had three children:

• Griffith Boynton (1664–1731), who succeeded as 3rd Baronet in 1695.
• Mary
• Constance, who married Richard Kirkshaw