The 1924 City of London by-election was a parliamentary by-election held on 1 February 1924 for the British House of Commons constituency of City of London, which covered the "Square Mile" which was the United Kingdom's traditional financial district.

The seat had become vacant on the elevation to the peerage of one of the constituency's two Conservative Members of Parliament (MPs), Sir Frederick Banbury, as Baron Banbury of Southam.

Banbury had held the seat since a 1906 by-election, following his defeat at Peckham in the 1906 general election. He had represented Peckham since 1892.

The Conservative Party selected as its candidate Sir Vansittart Bowater, who had been Lord Mayor of London in 1913. He had stood as an Independent Conservative in the 1922 by-election.

The Liberal Party selected Henry Bell, who was a managing director of Lloyds Bank.^[1] This was the first time the Liberals had contested the City since the January 1910 election.

Bowater was comfortably elected, and would represent the constituency until his death in 1938, precipitating another by-election.

• List of United Kingdom by-elections
• City of London constituency
• 1922 City of London by-election
• 1935 City of London by-election
• 1938 City of London by-election
• 1940 City of London by-election
• 1945 City of London by-election

• Craig, F. W. S. (1983) [First published 1969]. British parliamentary election results 1918-1949 (3rd ed.). Chichester: Parliamentary Research Services. ISBN 0-900178-06-X.
• Leigh Rayment's Peerage Pages ^{[self-published source] [better source needed]}