The results of the Chesham and Amersham Parliamentary By-Election held on Thursday 17th June 2021 have been announced.The results were as follows :
|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%).