| Election Name: | 1996 Barnsley East by-election |
| Country: | United Kingdom |
| Type: | parliamentary |
| Ongoing: | no |
| Previous Election: | 1992 United Kingdom general election |
| Previous Year: | 1992 |
| Next Election: | 1997 United Kingdom general election |
| Next Year: | 1997 |
| Election Date: | 12 December 1996 |
| Candidate1: | Jeff Ennis |
| Party1: | Labour Party (UK) |
| Popular Vote1: | 13,683 |
| Percentage1: | 76.4% |
| Swing1: | 0.8pp |
| Candidate2: | David Willis |
| Party2: | Liberal Democrats (UK) |
| Popular Vote2: | 1,502 |
| Percentage2: | 8.4% |
| Swing2: | 0.2pp |
| Party4: | Conservative Party (UK) |
| Popular Vote4: | 1,299 |
| Percentage4: | 7.3% |
| Swing4: | 6.9pp |
| Candidate5: | Ken Chapstick |
| Party5: | Socialist Labour Party (UK) |
| Popular Vote5: | 949 |
| Percentage5: | 5.3% |
| Swing5: | New |
| MP | |
| Before Election: | Terry Patchett |
| After Election: | Jeff Ennis |
| Before Party: | Labour Party (UK) |
| After Party: | Labour Party (UK) |
The Barnsley East by-election was held on 12 December 1996, following the death of the Labour Party Member of Parliament Terry Patchett for Barnsley East, in South Yorkshire, England, on 11 October.
Barnsley council leader Jeff Ennis held the seat for Labour on an increased majority of 68% and more than three quarters of the votes, despite a low voter turnout. Despite a slight reduction in the vote for the Liberal Democrats, they overtook the Conservative Party for second place.
The Socialist Labour Party, on their leader Arthur Scargill's home territory, was able to save its deposit.
With the election of a new Labour MP, the Conservatives lost their Parliamentary majority.