Sir Thomas Liddell, 1st Baronet (died 1650) 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...

 from 1628 to 1629 and in 1640.

Liddell was the son of Thomas Liddell of Ravensworth Castle. He was Sheriff of Newcastle-upon-Tyne in 1609 and mayor of Newcastle in 1625. In 1628 Liddell 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 Newcastle-upon-Tyne

Newcastle-upon-Tyne (UK Parliament constituency)

Newcastle-upon-Tyne was a borough constituency in the county of Northumberland of the House of Commons of England to 1706 then of the House of Commons of Great Britain from 1707 to 1800 and of the House of Commons of the United Kingdom from 1801 to 1918...

 and sat until 1629 when King Charles decided to rule without parliament for eleven years.

Liddell was mayor of Newcastle again in 1636. In April 1640, he was re-elected MP for Newcastle in the Short Parliament

Short Parliament

The Short Parliament was a Parliament of England that sat from 13 April to 5 May 1640 during the reign of King Charles I of England, so called because it lasted only three weeks....

. He was created a baronet on 2 November 1642 for his defence of Newcastle against the Scottish army.

Liddell married Isabel Anderson, daughter of Henry Anderson and had six sons and two daughters. His son Thomas predeceased him and he was succeeded in the baronetcy by his grandson Thomas.