There have been two Baronetcies created for persons with the surname Houldsworth, both in the Baronetage of the United Kingdom. One creation is extant as of 2007.

The Houldsworth Baronetcy, of Reddish in Manchester in the County of Lancaster, was created in the Baronetage of the United Kingdom on 20 July 1887 for the mill-owner and 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 William Houldsworth

William Houldsworth

Sir William Henry Houldsworth, 1st Baronet was a mill-owner in Reddish, Stockport. He was Conservative MP for Manchester North West from 1883 to 1906, and sometime chairman of the Fine Cotton Spinners' Association...

. The family surname is pronounced "Hoaldsworth".

The Houldsworth Baronetcy, of Heckmondwike in the West Riding of the County of York, was created in the Baronetage of the United Kingdom on 25 January 1956 for the coal industry manager and industrialist Herbert Houldsworth. The title became extinct on the death of his son, the second Baronet, in 1990.

Houldsworth Baronets, of Reddish (1887)

• Sir William Henry Houldsworth, 1st Baronet (1834-1917)
• Sir Henry Hamilton Houldsworth, 2nd Baronet (1867-1947)
• Sir William Thomas Reginald Houldsworth, 3rd Baronet (1874-1960)
• Sir Reginald Douglas Henry Houldsworth, 4th Baronet (1903-1989)
• Sir Richard Thomas Reginald Houldsworth, 5th Baronet (b. 1947)

Houldsworth Baronets, of Heckmondwike (1956)

• Sir Hubert Stanley Houldsworth, 1st Baronet (1889-1956)
• Sir (Harold) Basil Houldsworth, 2nd Baronet (1922-1990)