Which UK Constituencies will see By-Elections in the 2024 (59th) Parliament?

Question

During the course of a parliament there are frequently several by-elections. Where will they be?

Any constituency that holds a by-election to elect a new Member of Parliament will resolve YES on the day polling opens. All outstanding answers will resolve NO on the day parliament is dissolved for the next General Election.

Manifold Markets · Answer

Per Manifold Markets prediction market, North East Somerset and Hanham [Dan Norris], followed by Hertsmere [Oliver Dowden] and Richmond and Northallerton [Rishi Sunak] are most likely. See the market for live updates (17 traders, as of May 20, 2026).