Barnes Railway Bridge is a Grade II listed railway bridge in the London Borough of Richmond upon Thames and the London Borough of Hounslow. It crosses the River Thames in London in a northwest to southeast direction at Barnes. It carries the South Western Railway's Hounslow Loop Line, and lies between Barnes Bridge and Chiswick stations. It can also be crossed on foot, and is one of only three bridges in London to combine pedestrian and rail use; the others being Hungerford Bridge and Golden Jubilee Bridges and Fulham Railway Bridge.

The London Borough of Richmond upon Thames in southwest London, England, forms part of Outer London and is the only London borough on both sides of the River Thames. It was created in 1965 when three smaller council areas amalgamated under the London Government Act 1963. It is governed by Richmond upon Thames London Borough Council and is divided into nineteen wards. The population is 198,019 and the major settlements are Barnes, East Sheen, Mortlake, Kew, Richmond, Twickenham, Teddington and Hampton.