City of London (disambiguation)
The City of London is the historic centre and main financial district of London, England.

City of London may also refer to:
 City of London (UK Parliament constituency) from 1707 to 1950, continued as Cities of London and Westminster (UK Parliament constituency)
 London, the capital city of England and the United Kingdom
 London, Ontario, Canada
 City of London Corporation, the governing body of the City of London, England