Magna Carta Island is an ait in the River Thames in England, on the reach above Bell Weir Lock.
Its civil and ecclesiastical parish is Wraysbury so it was transferred from Buckinghamshire to Berkshire in 1974.
The island is a contender for being the place where, in 1215, King John sealed Magna Carta.
[1] In the early 1920s it was owned by a stockbroker, J. F. MacGregor, and his wife, the music hall performer Maidie Scott.
[2] In August 2014 Forbes reported that the island would be sold by Sotheby's International Realty.