There have been two Baronetcies created for members of the Peto family, both in the Baronetage of the United Kingdom.

The Peto Baronetcy, of Somerleyton Hall in the County of Suffolk, was created in the Baronetage of the United Kingdom on 22 February 1855 for the entrepreneur and Liberal

Liberal Party (UK)

The Liberal Party was one of the two major political parties of the United Kingdom during the 19th and early 20th centuries. It was a third party of negligible importance throughout the latter half of the 20th Century, before merging with the Social Democratic Party in 1988 to form the present day...

 politician Samuel Morton Peto

Samuel Morton Peto

Sir Samuel Morton Peto, 1st Baronet was an English entrepreneur and civil engineer in the 19th century. A partner in Grissell and Peto, he managed construction firms that built many major buildings and monuments in London...

. He was a railway contractor and also represented Norwich

Norwich (UK Parliament constituency)

Norwich was a borough constituency which was represented in the House of Commons of England from 1298 to 1707, in the House of Commons of Great Britain from 1707 to 1800, and in the House of Commons of the United Kingdom from 1801 until it was abolished for the 1950 general election...

, Finsbury

Finsbury (UK Parliament constituency)

The parliamentary borough of Finsbury was a constituency of the House of Commons of the Parliament of the United Kingdom from 1832 to 1885, and from 1918 to 1950. The constituency created in 1832 included part of the county of Middlesex north of the City of London and was named after the Finsbury...

 and Bristol

Bristol (UK Parliament constituency)

Bristol was a two member constituency, used to elect members to the House of Commons in the Parliaments of England , Great Britain and the United Kingdom . The constituency existed until Bristol was divided into single member constituencies in 1885.-Boundaries:The historic port city of Bristol, is...

 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...

.

The Peto Baronetcy, of Barnstaple in the County of Devon, was created in the Baronetage of the United Kingdom on 27 January 1927 for the Conservative

Conservative Party (UK)

The Conservative Party, formally the Conservative and Unionist Party, is a centre-right political party in the United Kingdom that adheres to the philosophies of conservatism and British unionism. It is the largest political party in the UK, and is currently the largest single party in the House...

 politician Basil Peto. 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 Devizes

Devizes (UK Parliament constituency)

Devizes is a parliamentary constituency in Wiltshire, England, which is now represented in the House of Commons of the Parliament of the United Kingdom, and before 1707 in the House of Commons of England....

 and Barnstaple

Barnstaple (UK Parliament constituency)

Barnstaple was a parliamentary constituency centred on the town of Barnstaple in Devon, in the South West of England. It returned two Members of Parliament to the House of Commons of the Parliament of the United Kingdom until 1885, when its representation was reduced to one member.The constituency...

. Peto was the seventh son of the first Baronet of the 1855 creation.

Peto Baronets, of Somerleyton Hall (1855)

• Sir Samuel Morton Peto, 1st Baronet (1809-1889)
• Sir Henry Peto, 2nd Baronet (1840-1938)
• Sir (Henry) Francis Morton Peto, 3rd Baronet (1889-1978)
• Sir Henry George Morton Peto, 4th Baronet (1920–2010)
• Sir Francis Michael Morton Peto, 5th Baronet (born 1949)

Peto Baronets, of Barnstaple (1927)

• Sir Basil Peto, 1st Baronet (1862-1945)
• Sir James Peto, 2nd Baronet (1894-1971)
• Sir Christopher Henry Maxwell Peto, 3rd Baronet
  Christopher Peto
  Sir Christopher Henry Maxwell Peto, 3rd Baronet DSO was a Brigadier in the British Army during World War II and a post-war British Conservative Party politician.-Early life:...
  
  (1897-1980)
• Sir Michael Henry Basil Peto, 4th Baronet (1938-2008)
• Sir Henry Christopher Morton Bampfylde Peto, 5th Baronet (born 1967)