This is a list of coats of arms of London.
Source:
Escutcheons only. For the full achievement see the linked articles.
Source:
Between 1900 and 1965 the former County of London (covering an area now referred to as Inner London) was divided into metropolitan boroughs.
These are the other former metropolitan boroughs and districts which belonged to Middlesex, Surrey, Essex, Kent and Hertfordshire before 1965 and were transferred to Greater London that year. (Note: Harrow is excluded because its arms, like its area, remained unaltered when it became a London Borough).