There have been four Baronetcies created for persons with the surname St John, two in the Baronetage of England and two in the Baronetage of Great Britain. Three of the creations are extant as of 2008.

The St John Baronetcy, of Lydiard Tregoze

Lydiard Tregoze

Lydiard Tregoze is a small village and civil parish on the western edge of Swindon in the County of Wiltshire, in the south west of England. It has in the past been spelt as Liddiard Tregooze and in other ways.-History:...

 in the County of Wiltshire, was created in the Baronetage of England on 22 May 1611. For more information on this creation, see Viscount Bolingbroke and St John.

The St John Baronetcy, of Woodford in the County of Northampton, was created in the Baronetage of England on 28 June 1660. For more information on this creation, see Baron St John of Bletso

Baron St John of Bletso

Baron St John of Bletso, in the County of Bedford, is a title in the Peerage of England. It was created in 1582 for Oliver St John.For a period, the title Baron St John was subsumed within the title Earl of Bolingbroke which was granted to the fourth Baron. The Earldom died out with the third Earl,...

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The St John Baronetcy, of Longthorpe in the County of Northampton, was created in the Baronetage of Great Britain on 10 September 1715 for Francis St John. The title became extinct on his death in 1756.

The St John, later St John-Mildmay Baronetcy, of Farley in the County of Southampton, was created in the Baronetage of Great Britain on 9 October 1772. For more information on this creation, see St John-Mildmay Baronets

St John-Mildmay Baronets

The St John, later St John-Mildmay Baronetcy, of Farley in the County of Southampton, is a title in the Baronetage of Great Britain. It was created on 9 October 1772 for Paulet St John, Member of Parliament for Winchester and Hampshire. The second Baronet represented Hampshire in the House of...

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