A by-election for the United Kingdom parliamentary constituency of Chesham and Amersham was held on 17 June 2021, following the death of incumbent Conservative Party MP Dame Cheryl Gillan. The Liberal

Dame Cheryl Elise Kendall Gillan was a British politician who served as Member of Parliament for Chesham and Amersham from 1992 until her death in 2021. A member of the Conservative Party, she served