Sir John Hanmer, 3rd Baronet (died 1701) was a Welsh politician who sat in the House of Commons

House of Commons of England

The House of Commons of England was the lower house of the Parliament of England from its development in the 14th century to the union of England and Scotland in 1707, when it was replaced by the House of Commons of Great Britain...

 at various times between 1659 and 1690.

Hanmer was the son of Sir Thomas Hanmer, 2nd Baronet

Sir Thomas Hanmer, 2nd Baronet

Sir Thomas Hanmer, 2nd Baronet was an English politician who sat in the House of Commons in 1640 and from 1669 to 1678. He was a Royalist during the English Civil War and raised troops for Charles I. In his personal life he was a keen horticulturists...

 of Hanmer and his first wife Elizabeth Baker. In 1659, he was elected 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,...

 for Flint in the Third Protectorate Parliament

Third Protectorate Parliament

The Third Protectorate Parliament sat for one session, from 27 January 1659 until 22 April 1659, with Chaloner Chute and Thomas Bampfylde as the Speakers of the House of Commons...

. He was knighted on 9 August 1660 and was High Sheriff of Gloucestershire

High Sheriff of Gloucestershire

This is a list of High Sheriffs of Gloucestershire.The High Sheriff is the oldest secular office under the Crown. Formerly the High Sheriff was the principal law enforcement officer in the county but over the centuries most of the responsibilities associated with the post have been transferred...

 from 1664 to 1665, In October 1669 he was elected MP for Evesham

Evesham (UK Parliament constituency)

Evesham was a parliamentary constituency in Worcestershire which was represented in the British House of Commons. Originally a parliamentary borough consisting of the town of Evesham, it was first represented in 1295...

  for the Cavalier Parliament

Cavalier Parliament

The Cavalier Parliament of England lasted from 8 May 1661 until 24 January 1679. It was the longest English Parliament, enduring for nearly 18 years of the quarter century reign of Charles II of England...

. He succeeded to the Baronetcy on the death of his father in 1678. In 1681 he was elected MP for Flintshire

Flintshire (UK Parliament constituency)

Flintshire was a parliamentary constituency in North-East Wales which returned one Member of Parliament to the House of Commons of the Parliament of the United Kingdom from 1542 until it was abolished for the 1950 general election.- Boundaries :...

 . He was elected MP for Flint again in 1685. He became a colonel of the 11th Foot in 1688. In 1689 he was elected MP for Flint again. He became a Major-General in the Army and was Colonel of the 11th Foot, serving King William III at the Battle of the Boyne

Battle of the Boyne

The Battle of the Boyne was fought in 1690 between two rival claimants of the English, Scottish and Irish thronesthe Catholic King James and the Protestant King William across the River Boyne near Drogheda on the east coast of Ireland...

in 1690.

Hanmer married Mary Alston, daughter of Joseph Alston, of Netherhall, Suffolk. He had no issue and was succeeded in the baronetcy by his nephew Thomas.