There have been two Baronetcies created for persons with the surname Knightley, one in the Baronetage of England and one in the Baronetage of Great Britain. Both creations are extinct.

The Knightley Baronetcy, of Offchurch in the County of Warwick, was created in the Baronetage of England on 30 August 1660 for John Knightley. The title became extinct on the death of the second Baronet in 1689.

The Knightley Baronetcy, of Fawsley in the County of Northampton, was created in the Baronetage of Great Britain on 2 February 1798 for John Knightley, with remainder to the male issue of his deceased younger brother Reverend Charles Knightley. He was succeeded according to the special remainder by his nephew, the second Baronet. He sat as 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 Northamptonshire South

South Northamptonshire (UK Parliament constituency)

South Northamptonshire is a county constituency of the House of Commons of the Parliament of the United Kingdom. The current Member of Parliament is Andrea Leadsom of the Conservative Party.-History:...

. On his death the title passed to his son, the third Baronet. He also represented Northamptonshire South in the House of Commons

British House of Commons

The House of Commons is the lower house of the Parliament of the United Kingdom, which also comprises the Sovereign and the House of Lords . Both Commons and Lords meet in the Palace of Westminster. The Commons is a democratically elected body, consisting of 650 members , who are known as Members...

. On 23 August 1892 he was raised to the Peerage of the United Kingdom

Peerage of the United Kingdom

The Peerage of the United Kingdom comprises most peerages created in the United Kingdom of Great Britain and Ireland after the Act of Union in 1801, when it replaced the Peerage of Great Britain...

 as Baron Knightley, of Fawsley in the County of Northampton.

Lord Knightley was childless and on his death in 1895 the barony became extinct. He was succeeded in the baronetcy by his first cousin, the fourth Baronet. He was the son of Reverend Henry Knightley (1786–1813), younger brother of the second Baronet. He never married and was succeeded by his nephew, the fifth Baronet. He was the son of Reverend Henry Charles Knightley (1823–1884), younger brother of the fourth Baronet. Knightley was a member of the Northamptonshire County Council. He was childless and on his death the title passed to his younger brother, the sixth Baronet. He was a clergyman. He was also childless and on his death in 1938 the baronetcy became extinct.

Valentine Knightley (1718–1754), father of the first Baronet, was Member of Parliament for Northampton

Northampton (UK Parliament constituency)

Northampton was a parliamentary constituency centred on the town of Northampton which existed until 1974.It returned two Members of Parliament to the House of Commons of the Parliament of the United Kingdom until its representation was reduced to one member for the 1918 general election...

 between 1748 and 1754.

The ancestral seat of the Knightley family was Fawsley

Fawsley

Fawsley is a hamlet and civil parish in the Daventry district of the county of Northamptonshire, England. The population at the 2001 census was 32....

 in Northamptonshire

Northamptonshire

Northamptonshire is a landlocked county in the English East Midlands, with a population of 629,676 as at the 2001 census. It has boundaries with the ceremonial counties of Warwickshire to the west, Leicestershire and Rutland to the north, Cambridgeshire to the east, Bedfordshire to the south-east,...

. There is a monument to Sir Richard Knightley (d.1537) in the church at Upton

Upton, Northamptonshire

Upton is a civil parish north-east of Kislingbury and south-west of Dallington, in Northamptonshire, England about west of Northampton town centre along the A45 road. Formerly a scattered hamlet, it is now part of the town...

 near Northampton

Northampton

Northampton is a large market town and local government district in the East Midlands region of England. Situated about north-west of London and around south-east of Birmingham, Northampton lies on the River Nene and is the county town of Northamptonshire. The demonym of Northampton is...

.

Knightley Baronets, of Offchurch (1660)

• Sir John Knightley, 1st Baronet (c. 1611–c. 1670)
• Sir John Knightley, 2nd Baronet (d. 1689)

Knightley Baronets, of Fawsley (1798)

• Sir John Knightley, 1st Baronet (1747–1812)
• Sir Charles Knightley, 2nd Baronet (1781–1864)
• Sir Rainald Knightley, 3rd Baronet
  Rainald Knightley, 1st Baron Knightley
  Rainald Knightley, 1st Baron Knightley , known as Sir Rainald Knightley, 3rd Baronet, from 1864 to 1892, was a British Conservative Party politician.-Background:...
  
  (1819–1895) (created Baron Knightley in 1892)

Knightley Baronets, of Fawsley (1798); Reverted

• Sir Valentine Knightley, 4th Baronet (1812–1898)
• Sir Charles Valentine Knightley, 5th Baronet (1853–1932)
• Sir Henry Francis Knightley, 6th Baronet (1854–1938)