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

| Date_ | Constituency | c_u | Former_Incumbent | Winner | Cause_ |
|---|---|---|---|---|---|
| 9 May 1794 | Pontefract | u* | John Smyth | John Smyth | Junior Lord of the Treasury |
| 12 May 1794 | Rochester | u* | Nathaniel Smith | Sir Richard King | Death |
| 12 May 1794 | Tregony | u | John Stephenson | Robert Stewart | Death |
| 21 May 1794 | New Radnor Boroughs | u* | David Murray | Viscount Malden | Death |
| 22 May 1794 | Derbyshire | u* | Lord George Augustus Cavendish | Lord John Cavendish | Death |
| 3 June 1794 | Huntingdonshire | u | Lancelot Brown | Viscount Hinchingbrooke | Resignation |
| 9 June 1794 | Cricklade | u* | John Walker Heneage | Lord Porchester | Resignation |
| 12 June 1794 | Ayr Burghs | u* | Charles Stuart | John Campbell | Resignation |
| 1 July 1794 | Anstruther Easter | u | Robert Anstruther | William Dundas | Resignation |