London Borough of Ealing

The London Borough of Ealing () is a London borough in London, England. It comprises the districts of Acton, Ealing, Greenford, Hanwell, Northolt, Perivale and Southall. With a population of 385,985 inhabitants as of 2024, it is the third most populous London borough.

Ealing is the third largest London borough in population and eleventh largest in area, covering part of west London and a small part of north-west London. It bridges Inner and Outer London. Its administrative centre is in Ealing Broadway. Ealing London Borough Council is the local authority.

Ealing has long been known as the "Queen of the Suburbs" due to its many parks and tree-lined streets; the term was coined in 1902 by borough surveyor Charles Jones. This is reflected by the tree emblem on its council logo and its coat of arms. Within the borough are two garden suburbs, Brentham Garden Suburb and Bedford Park. 330 hectares within the borough are designated as part of the Metropolitan Green Belt.

The neighbouring boroughs are (clockwise from north): Harrow, Brent, Hammersmith and Fulham, Hounslow and Hillingdon.