Notes
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There have been two baronetcies created for persons with the surname Porter, both in the Baronetage of the United Kingdom.
The Porter Baronetcy, of Frimley in the County of Surrey, was created in the Baronetage of the United Kingdom on 27 June 1889 for the surgeon George Porter. The title became extinct on the death of the third Baronet in 1974.
The Porter Baronetcy, of Merrion Square in the City and County of Dublin, was created in the Baronetage of the United Kingdom on 22 July 1902. For more information on this creation, see Horsbrugh-Porter baronets.
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There have been six baronetcies created for persons with the surname Smyth, two in the Baronetage of England, one in the Baronetage of Great Britain, one in the Baronetage of Ireland and two in the Baronetage of the United Kingdom. One creation is extant as of 2010.
There have been three baronetcies created for members of the Grey family, one in the Baronetage of England, one in the Baronetage of Great Britain and one in the Baronetage of the United Kingdom. Two of the creations are extant as of 2007.
There have been five baronetcies created for people with the surname Pollock, one in the Baronetage of Nova Scotia and four in the Baronetage of the United Kingdom. As of 2017 three of the creations are extant. These three creations derive from the same family to which the 1703 baronetcy was granted; the Pollock ancestor of Sir Frederick Pollock, 1st Baronet and Sir George Pollock, 1st Baronet married his cousin, daughter of Sir Robert Pollock, 2nd Baronet.
There have been seven Baronetcies created for persons with the surname Lewis, two in the Baronetage of England and five in the Baronetage of the United Kingdom. Only one creation is extant as of 2010.
There have been five baronetcies created for persons with the surname Alexander, one in the Baronetage of Nova Scotia and four in the Baronetage of the United Kingdom. Four of the creations are extant as of 2010.
The Porter, later Horsbrugh-Porter Baronetcy, of Merrion Square in the City and County of Dublin, is a title in the Baronetage of the United Kingdom. It was created on 24 July 1902 for the Irish lawyer, judge and Liberal politician Andrew Porter. He served as Solicitor-General for Ireland from 1881 to 1882, as Attorney-General for Ireland from 1882 to 1883 and as Master of the Rolls for Ireland from 1883 to 1906. The second Baronet assumed the additional surname of Horsbrugh in 1911.
There have been four baronetcies created for persons with the surname Sykes, two in the Baronetage of Great Britain and two in the Baronetage of the United Kingdom. Three of the creations are extant as of 2008.
There have been nine baronetcies created for persons with the surname Lloyd, three in the Baronetage of England, three in the Baronetage of Great Britain and three in the Baronetage of the United Kingdom. Two of the creations are extant as of 2010.
There have been six baronetcies created for persons with the surname Brooke, one in the Baronetage of England, one in the Baronetage of Ireland and four in the Baronetage of the United Kingdom. As of 2015 four of the creations are extant, though one has been subsumed into a peerage.
There have been twenty one baronetcies created for persons with the surname Williams, eight in the Baronetage of England, three in the Baronetage of Great Britain and ten in the Baronetage of the United Kingdom. Only six of the creations are extant as of 2017.
There have been five baronetcies created for persons with the surname Richardson, one in the Baronetage of Nova Scotia, one in the Baronetage of Ireland and three in the Baronetage of the United Kingdom.
There have been four baronetcies created for members of the Wills family, owners of W. D. & H. O. Wills and major shareholders and directors of the Imperial Tobacco Company. All four creations were in the Baronetage of the United Kingdom.
There have been three baronetcies created for persons with the surname Dixon, all in the Baronetage of the United Kingdom.
There have been nine baronetcies created for persons with the surname Cooper, one in the Baronetage of England, one in the Baronetage of Ireland and seven in the Baronetage of the United Kingdom.
There have been four baronetcies created for persons with the surname Holland, one in the Baronetage of England and three in the Baronetage of the United Kingdom.
There have been six baronetcies created for persons with the surname King, one in the Baronetage of Ireland, one in the Baronetage of Great Britain and four in the Baronetage of the United Kingdom. Three of the creations are extant as of 2007.
There have been four baronetcies created for persons with the surname O'Brien, one in the Baronetage of Ireland and three in the Baronetage of the United Kingdom.
There have been seven baronetcies created for persons with the surname Watson, one in the Baronetage of England, one in the Baronetage of Great Britain and five in the Baronetage of the United Kingdom. One creation is extant as of 2016.
There have been two baronetcies created for persons with the surname Pakington, one in the Baronetage of England and one in the Baronetage of the United Kingdom. One creation is extant as of 2008.
There have been five baronetcies created for persons with the surname Kennedy, one in the Baronetage of Ireland, three in the Baronetage of Nova Scotia and one in the Baronetage of the United Kingdom. One creation is extant as of 2010.