The London Borough of Hounslow () is a London borough in west London, England, forming part of Outer London. The borough stretches from near Central London in the east to the border with Surrey in the west, covering Chiswick, Brentford, Isleworth and Feltham in addition to Hounslow itself; it borders the boroughs of Richmond upon Thames, Hammersmith and Fulham, Ealing and Hillingdon, plus the Surrey borough of Spelthorne. Landmarks include Osterley Park, Gunnersbury Park, Syon House, the London Museum of Water & Steam and Chiswick House. The local authority is Hounslow London Borough Council.