Nathaniel Waterhouse was an English 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...

  in 1656 and 1659.

Waterhouse was of the family of Waterhouse of Halifax and was a resident of Westminster. He was steward of the lands of Oliver Cromwell

Oliver Cromwell

Oliver Cromwell was an English military and political leader who overthrew the English monarchy and temporarily turned England into a republican Commonwealth, and served as Lord Protector of England, Scotland, and Ireland....

 from 1651 to 1658. In 1656, 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 Monmouthshire

Monmouthshire (UK Parliament constituency)

Monmouthshire was a county constituency of the House of Commons of Parliament of England from 1536 until 1707, of the Parliament of Great Britain from 1707 to 1801, and of the Parliament of the United Kingdom from 1801 to 1885...

 for the Second Protectorate Parliament

Second Protectorate Parliament

The Second Protectorate Parliament in England sat for two sessions from 17 September 1656 until 4 February 1658, with Thomas Widdrington as the Speaker of the House of Commons...

 as a replacement for a member who chose another seat. In 1659 he was servant to Richard Cromwell

Richard Cromwell

At the same time, the officers of the New Model Army became increasingly wary about the government's commitment to the military cause. The fact that Richard Cromwell lacked military credentials grated with men who had fought on the battlefields of the English Civil War to secure their nation's...

. He was elected MP for Monmouth Boroughs

Monmouth Boroughs (UK Parliament constituency)

Monmouth Boroughs was a parliamentary constituency consisting of several towns in Monmouthshire...

 for 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...

in 1659.