Harpenden and Berkhamsted is a constituency of the House of Commons in the UK Parliament.

[2] It was established by the 2023 periodic review of Westminster constituencies and was first contested at the 2024 general election.

[3] It is represented by Victoria Collins of the Liberal Democrats.

This is a generally affluent seat with low deprivation and high incomes,[4] facilitated by two railway lines to Central London.

The constituency is composed of the following electoral wards:[5][6] It covers the following areas:[7] Hitchin & Harpenden and South West Hertfordshire prior to 2024