The Port of London is that part of the River Thames in England lying between Teddington Lock and the defined boundary (since 1968, a line drawn from Foulness Point in Essex via Gunfleet Old Lighthouse to Warden Point in Kent) with the North Sea and including any associated docks. Once the largest port in the world, it was the United Kingdom's largest port as of 2020.

The Port of Hull is a port at the confluence of the River Hull and the Humber Estuary in Kingston upon Hull, ... By the late 17th century Hull was the third port in the realm after London and Bristol, ... and an Act of Parliament was passed in 1774 allowing the Dock Company to raise up to £100,000 by shares and loans; ...