Results of the Chesham and Amersham Parliamentary By-Election held on Thursday 17th June 2021
The results of the Chesham and Amersham Parliamentary By-Election held on Thursday 17th June 2021 have been announced.The results were as follows :
| Candidate | Party | Votes | % | |
| Sarah Louise Green | Liberal Democrats | 21,517 | 57% | Elected |
| Peter David Fleet | Conservative and Unionist Party | 13,489 | 36% | Not elected |
| Carolyne Lindsey Culver | Green Party | 1,480 | 4% | Not elected |
| Natasa Pantelic | Labour Party | 622 | 2% | Not elected |
| Alex Wilson | Reform UK | 414 | 1% | Not elected |
| Carla Louise Gregory | Breakthrough Party | 197 | 1% | Not elected |
| Adrian John Oliver | Freedom Alliance – Integrity, Society, Economy | 134 | 0% | Not elected |
| Brendan Patrick Donnelly | Rejoin EU | 101 | 0% | Not elected |
The Liberal Democrat candidate, Sarah Green, won the seat by 8,028 votes. Since its creation in 1974 the seat had previously only been held by a Conservative candidate.
The by-election was caused by the death of former Welsh Secretary Dame Cheryl Gillan in April 2021.
The turnout was 37,954 (52%).
