Morrison's Haven (or Morison's Haven) is a harbour at Prestongrange, East Lothian, Scotland, UK, on the B1348, close to Levenhall Links, Prestongrange Industrial Heritage Museum, Prestonpans, and Prestongrange House.
In 1526, the Cistercian monks of Holyrood Abbey and Newbattle Abbey received permission from King James V for the construction of a port in place called "Gilbertis-draucht". The monks could also collect "port monies, customs and duties". There was at least one mill, and a stone fort with underground vaults which was destroyed by Oliver Cromwell in 1650 on his way to Leith. The Abbot leased the port to Alexander Atkinsoun or Achesoun, and the port was known as "Acheson's Haven" and sometimes "New Haven" until the 17th century.
By the middle of the 18th century, the Haven was a busy port, exporting oysters, salt, local glassware, ceramics, bricks, fireclay, coal, and chemicals, including sulphuric acid. Imports were brandy from France, port wine from Portugal, Delft china from the Low countries, leather from the Baltic port Danzig, and furs from Canada. A map of 1773 shows the port having two breakwaters.