Kew Bridge crosses the River Thames between Kew Green in Kew on the south bank and Brentford on the north bank. It is immediately adjacent to the Royal Botanic Gardens on the Kew side of the river and the former Grand Junction Waterworks Company buildings (now the London Museum of Water & Steam) on the north.

The bridge forms a primary route destination joining the South Circular and North Circular roads to the west of London, and can be very congested. Beside the bridge on the downstream Kew bank is Kew Pier, which serves tourist ferries operating under licence from London River Services.