List of Great Britain by-elections (1790–1800) By-elections 17th Parliament (1790–1796)

| Date_ | Constituency | c_u | Former_Incumbent | Winner | Cause_ |
|---|---|---|---|---|---|
| 28 May 1793 | Heytesbury | u* | The Lord Auckland | The Viscount Clifden | Became a British Peer |
| 26 June 1793 | Shaftesbury | u* | William Grant | Paul Benfield | Appointed Second Justice of the South Wales Circuit |
| 26 June 1793 | Whitchurch | u* | John Thomas Townshend | John Thomas Townshend | Junior Lord of the Treasury |
| 27 June 1793 | Ludgershall | u | Samuel Smith | Nathaniel Newnham | Death |
| 28 June 1793 | Edinburgh | u* | Henry Dundas | Henry Dundas | President of the Board of Control |
| 28 June 1793 | Marlborough | u | The Earl of Courtown | Earl of Dalkeith | Resignation |
| 28 June 1793 | Newtown | u | Sir Richard Worsley | George Canning | Resignation |
| 28 June 1793 | Rye | u* | Robert Banks Jenkinson | Robert Banks Jenkinson | Commissioner of the Board of Control |