Platt's Eyot or Platt's Ait is an island on the River Thames at Hampton, in the London Borough of Richmond upon Thames, England, on the reach between Molesey Lock and Sunbury Lock.

Hampton is a suburb of Greater London on the north bank of the River Thames, in the London Borough of Richmond upon Thames, England, and the historic county of Middlesex. Hampton is bounded by Bushy Park to the east, the suburbs of Hampton Hill and Fulwell to the north, green belt to the west, and the Thames to the south.