1944 Chelsea by-election
The by-election was caused by the elevation of the constituency's Conservative Party Member of Parliament (MP) Sir Samuel Hoare to the peerage as Viscount Templewood. Hoare had held the seat since the January 1910 general election.
The Conservative candidate, William Sidney, was returned unopposed. Sidney held the seat until he succeeded his father as Baron de L'Isle and Dudley, leaving the seat vacant at the dissolution for the 1945 general election.