Kingston upon Thames, colloquially known as Kingston, is a town in the Royal Borough of Kingston upon Thames, south-west London, Engla…Kingston upon Thames, colloquially known as Kingston, is a town in the Royal Borough of Kingston upon Thames, south-west London, England. It is situated on the River Thames, 10 miles south-west of Charing Cross. It is an ancient market town, notable as the place where some Saxon kings were crowned.